Vai & Satriani? I think it boils down to that same old argument once again - technique vs feel.
exactly. There are two guitar players I play with that makes this statement hit home. One plays very simple, yet tasteful and elegant licks, and has a great feel. The other has monster chops and can play almost anything, but lacks any emotion in his playing.
As for the topic at hand, seems more like a coincidence than anything.