5% of you know what's happening in this clip, the other 95% will call this a random ex green hand. Tech like this is why USF4 will never be a solved game. (also because it doesn't have reliable rollback)
you have to do crlk, buffer the dp motion, go to neutral, end on down back and THEN two punch buttons. All in the window of the cr lk. They dont do anything that activates prox block, if input correctly, only cr.lk comes out. they do, ex green hand will come out