I've never been a fan of the x22 guy and I think he's wrong on this. Obviously, just my opinion, but why would she / they make it so obvious and so weird when she easily could have stayed in her seat and made the gesture less dramatically? Or communicated that another way at a different time? It seemed to me that she thought one of their pre-arranged 'applause' breaks was at hand and she started to get excited to show support, then screwed up royally and like an embarrassed little kid, scrubbed her hands together and stood up and sat down, awkwardly. The bizarre smile through the whole thing fits with that theory, as well.