There are certainly circumstances that can lead you to fold AK preflop, especially near a money bubble or pay jump that might mean something to you.
If there is a raise, a three bet, and a four bet all in before you act, then your AK shrivels up pretty quickly. If you are sitting on 6-8 BB then certainly things are different, but it shouldn't just be a no-thought snap shove in a lot of situations.