Based on my experience, not at all. I haven't noticed any issue with the shoes' support. I make cuts and lateral movements during games. I'd also like to know what others think based on their experience with the Hyperrev, though. Maybe I just move slow
One thing I don't like about the KD VI Elite, though, is that there isn't much flexibility in the sole, not like the Hyperrev that has that smooth heel-to-toe transition.
I think they are OOS already in most (if not all) authorized outlets (Titan, Nike Park, etc.). You may want to check resellers if you're willing to spend above retail; they might have your size.
No ripping issue yet with my pair. Had been using them for rec and local league games (none of the heavy training stuff though). Thirty hours at least on them. Most likely I don't ball as hard as that KickGenius guy in the vid