Not sure who the "wise ones" are that you're referring to, but an added squadron of French warships would have to be taken seriously by the Japanese at the time. Sure, WE can poo poo the AA capabilities of a 1940-41 warship, but that's rather 20/20 hindsight I would say
Yes and no. It may depend on which French warships and how many.
The 20/20 hindsight didn't have to be all that clear, or in fact use any hindsight at all.
HMS Renown. Not sure of the date of the picture but the major AA guns were as the refit completed in Aug of 1939 had them. Refit was 3 years and cost £3,088,008 so somebody was using fore sight. 20 4.5in guns it ten twin turrets/mounts with 400 rpg (8000 rounds of heavy AA ammo) , four high angle gun directors and three octuple 2pdr guns.
Over two years later the Repulse was sent to the far east with a grand total of six (yes six) 4in AA guns in manual mounts and had two octuple mounts. The Renown may have had twice the number of rpg of 2pdr ammo and had 50% more barrels. The British did have some idea of what a decent AA battery was, they didn't have enough money or dock yard space to implement it. The Queen Elizabeth and Valiant both had gotten AA suites in the late 30s very similar to the Renown so it wasn't a one off.
After the Campaign in Norway, Dunkirk, almost a 1 and 1/2 years in the Med and actions off Greece and Crete it should NOT have taken a crystal ball to figure out what a poor AA suite was and what at least acceptable (The Repulse was not). Too many lives had already been lost and ships sunk. We don't need the results of 1942-43 to figure that out.
Putting 3rd rate ships in areas where enemy aircraft were likely and not to be at severe risk goes back to the definition of insanity. "
doing the same thing over and over again and expecting different results."
The French ships, mostly, had much poorer AA than the British ships. It took
four French 37mm barrels to put as many shells into the air as a
single 2pdr barrel for example.
Granted I believe the Phillips knew that without air cover he was taking a BIG risk but I think counted on his AA suite and maneuverability to keep air attacks at bay.
The Prince of Wales might be excused. It's AA suite had not been tested (or not much) and we have to use the 20/20 hindsight to figure out the flaws in it's battery, There were some but since nobody had anything any better (yet) we give the PoW a pass.
The Repulse carried the AA of a light cruiser (Southampton) on a battleship sized hull.
At Crete the British had lost to airpower 3 cruisers and 6 destroyers, and suffered Damage to 1 Aircraft carrier, 2 battleships, 4 cruisers, 2 destroyers and a submarine. (the York was hit by Italian explosive motor boats). Claiming that the Japanese attacks were a "surprise" or claiming that because no battleship had been sunk at sea by airpower until that time that it was OK to operate battleships without air cover is not convincing.
Wiki;
Warspite
"During the
Battle of Crete,
Warspite was used as a floating anti-aircraft battery and
[71] like many other ships, suffered severe damage from German air attacks on 22 May.
[72] A 500 lb bomb damaged her starboard 4-inch and 6-inch batteries,
[73] ripped open the ship's side and killed 38 men.
[74] The attack was carried out by
Jagdgeschwader 77 (JG 77—Fighter Wing 77).
Oberleutnant Kurt Ubben, a future
flying ace with 110 enemy aircraft shot down, claimed a hit on the warship.
[75] She was able to make it back to port under her own steam, but the damage could not be repaired in Alexandria and it was decided that she would have to be sent to
Bremerton on the west coast of the United States.
[76]"
Barham
" While covering the evacuation of Crete the following day, the ship was attacked by Junkers Ju 88 bombers from II./LG (Demonstration Wing) 1 and Heinkel He 111 bombers of II./KG (Bomber Wing) 26. One 250-kilogram (550 lb) bomb struck 'Y' turret and started a fire inside the turret that took 20 minutes to quench. A near miss ruptured her portside bulge over an area 20 by 16 feet (6.1 by 4.9 m) and caused a 1.5 degree list that was easily corrected by pumping oil. Casualties were five dead and six wounded. She reached Alexandria later that day, but she was too large for the floating dock there and had to be sent elsewhere for repairs. She sailed south through the Suez Canal to Mombasa, Kenya, where her damage was inspected. It proved to be worse than expected and Barham had to be repaired at Durban, South Africa, as she was unfit to make the trans-Atlantic crossing for repair in the United States.[86] Repairs were completed six weeks later on 30 July and the ship returned to Alexandria in August where she resumed her role as flagship of the 1st Battle Squadron.[54 "
even 500-550lbs bombs could pose considerable risk.