Except his request is to move it to another input, not the iframe issue, which is a different topic. That particular fight, like most fights involving Hado and Sharo in the first two games, requires timing and practice. Besides, permanently assigning to a button (in his case R2), limits customization of other inputs. I for one already have R2 assigned as the special move for Kick and Punch. Plus, I think his video is evident enough that he's very capable of the current Hadouken input, and if he's a speedrunner he should be skilled enough. And the biggest point is, it doesn't help anything while we're waiting for the next update. If anything, request once per update, and if it doesn't come to fruition, learn to be okay with it.