Quick Feet (and Guts, for that matter) only kicks in when a permanent status is inflicted, not confusion. And Tangled Feet is just not as good as Own Tempo, either. 50% chance of the opponent not hitting you, but you have the same chance of not hitting him AND hurting yourself in the process. No confusion is just better. Especially with something like Berserk Gene, where the damage you take when confused makes a lot of Pokés look like freaking Sharpedo.
But that's beside the point. The point is, you have as good a chance finding Absir'd or Gazellezag as you do the Berserk Gene in this game.