Just to clarify something as I've seen it posted inaccurately, for obvious reasons, on various different sites.
At the end of the stream there was a Q&A with Yohei Shimbori. In it, it was translated that he has to go back and rethink the Critical Burst system because it may be too powerful. Based on my sources, this was in fact a mistranslation. He was actually saying they needed to go back and rethink which moves had the Critical Burst property. I think he felt it was too much for Kasumi's 66KK - which is what you saw Kayane doing with Kasumi (Stun > 66KK > Critical Burst).
However, with that said, 66KK really isn't that much of a stretch as both kicks can be held easily and even stepped raw; the move by default won't put someone in enough stun threshold to warrant a critical burst; I believe that Vanessa vs Kayane's first match demonstrated that a player familiar with the rest of the system can still use spacing, zoning, poking, and whiff punishment to stop the abuse of the Critical Burst.
I look forward to the events at the end of the year to see how many people will be playing the game. I know at my events of GVN and NEC I'd be happy to teach the game to any players that want to - we'll be sharing the same game room anyways haha.