Different wars by different countries with different goals. In other words, Apples and Oranges.
Al-Quida is the goal of the US, Taliban is more incidental. If the US could split the Taliban from Al-Quida, they would.
That being said, nobody has had much luck in A-stan in 2500 years. The place is a tribal mess. Article seems to say AQ is responsible for that and it is all part of their grand strategy. Yeah, and I'm responsible for the sun rising every day. AQ is just playing the field on this one.
If I were betting on the US or AQ coming out of this ahead, I'd bet on the US. If I were betting on the Taliban or the US coming out ahead, I'd go 50/50 at best with an edge to the Taliban.
Sooner or later, the locals will figure out the sooner we get rid of the Arabs (as they look at AQ), the sooner we get rid of the other foriegners running around the place. That spells very bad news for AQ.