With the way people were bitching about this, I thought Jeff did a whole choreographed dance routine while his brother was being literally eviscerated by a gang of niggers.
But then I watched and he pauses for like a second, and the way he does it comes across as animated and urgent. And his brother, along with two other dudes, are on the receiving end of a generic wrestling beatdown that has been done one hundred thousand times and has never resulted in death or serious injury.
I think that, even in kayfabe, Jeff would understand that his brother is not in any real, genuine danger, he's just getting his ass beat. Jeff taking a second to have fun and enjoy the crowd in his debut in a new promotion isn't going to make any sort of difference to his brother's well being. You could even make the argument in kayfabe that he was getting himself pumped before going into a disadvantageous situation where he'd be outnumbered in a fight.