Because of load lifting ability. and the fact that a plane DOES NOT have to be a great dogfighter in order to be a ground attack machine. Few strafing runs, rocket firings or bomb drops were done in 4-6 G turns. AS long as the plane responded to the controls in a predictable fashion and perhaps more importantly, had decent aileron response at high speed that may be all that was needed.
All the aileron (or roll response) charts at at indicated airspeeds, which is darn close to actual speed at sea level. Trying to do a ground attack run at 350mph (if the plane can go that fast) with severely degraded aileron response is going to difficult no matter how well the plane turns ONCE it has banked.
It's worth quoting Reschke's impression of the fight becaus he refers to something you refered to, he said he had plenty of controllabillity remaining.
WILLI RESCHKE's version, from his book "Jagdgeschwader 301/302 "Wild Sau" - In Defense of the Reich with the Bf 109, Fw 190 and Ta 152":
"Attacks by enemy fighter-bombers became more frequent in the areas around the airfields, and Tempests were seen more frequently. From Neustadt-Glewe we could see them hanging in the air like hawks, ready to swoop down on anything that moved. During the late afternoon hours on 14 April 1945 two of these aircraft were seen attacking the railway line from Ludwigslust to Schwerin, which passed just a few kilometers from the airfield. Immediately three Ta 152's took off flown by Oberstleutnant Auffhammer, Oberfeldwebel Sattler and Oberfelwebel Reschke.
As our takeoff was in the same general diretion as the railway line, we reached the Tempests' attack area shortly after takeoff. I was flying as number three in the formation, and as we reached the area where the Tempests were I saw Sattler's Ta 152 go down for no apparent reason. Now it was two against two, and the low-level battle began.
The Termpest was known to be a very fast aircraft, with which the English had been able to catch and shoot down the V-1. In this engagement, however, speed played a less important role: at low level an aircraft's maneuverability was more important. As I approached, my opponent pulled up from a low-level attack and I attacked from out of a left-hand turn.
Both pilots realized that this was a fight to the finish, and from the outset both used every tactical and piloting ploy in an attempt to gain an advantage. At that height neither could afford to make a mistake, and for the first time I was able to see what the Ta 152 could really do.
Twisting and turning, never more than fifty meters above the ground, I closed the range on the Tempest. At no time did I get the feeling that my machine had reached the limit of it's performance. The Tempest pilot quite understandably had to undertake risky maneuvers to aviod a fatal burst from my guns. As my Ta 152 closed in on the Tempest,
I could see that it was on the verge of rolling the other way: an indication that it could not turn any tighter. The first burst from my guns struck the Tempest in the rear fuselage and tail. The Tempest pilot reacted by immediately flicking his aircraft into a right-hand turn, which increased my advantage even further. There was no escape for the Tempest now. I pressed the firing button once again, but my guns remained silent. Recharging them did no good: my guns refused to fire even a single shot. I can't remember whom and what I cursed at that moment. Luckily the Tempest pilot was unaware of my bad luck, for he had already had a sample. He continued to twist and turn, and I positioned my Ta 152 so that he always had a view of my machine's belly. Then came the moment when the Tempest went into a high-speed stall: it rolled left and crashed into a wood. This combat was certainly unique, having been played out at heights which were often just ten meters above the trees and rooftops.
Throughout I never had the feeling that my Ta 152 had reached its performance limit, instead it reacted to the slightest control input, even though we were practically at ground level. Oberstleutnant Auffhammer
also gained the upper hand against his Tempest, but in the end the enemy succeeded in escaping to the west. As the combat had taken place just a few kilometers from the airfield, in the late afternoon we drove out to the scene and discovered that Oberfeldwebel Sattler's Ta 152 and my Tempest had crashed within 500 meters of each other. The treetops had absorbed some of the force of the crash and the Tempest looked like it had made a forced landing. The damage inflicted by my cannon shells was clearly visible on the tail and rear fuselage and the pilot was still strapped in his cockpit. It turned out that he was a New Zealander, Warrant Officer O.J. Mitchell of No.486 Squadron, Royal Air Force. The next day the two fallen pilots were buried with military honors at Neustadt-Glewe cemetary.
For a long time that evening the crash of Oberfeldwebel Sattler occupied the minds of the pilots and the many witnesses who had observed the combat from the airfield. The engagement had not even begun when Sattler went down, as both Tempest pilots were still busy with their low-level attacks on the railway line and incapable of posing any threat to the Ta-152's. Moreover he was too experienced a fox to place himself in a disadvantageous position in such a situation. We could not find an explanation for his crash, which will remain a mystery forever. This was the third crash of a Ta 152, and all were unexplained."
The Crash of Sattlers Ta 152H was witnessed from the ground and he was simply not seen to recover from a dive. The Ta 152 had a reputation for its rudders seizing mechanically which required a few kicks to release. It may have simply been a mechanical failure.