That video doesn’t work. Just ask a friend to test it out. The frames of team supers is pre flash frames of point character meshed with post flash frames of everyone else.
So Bionic Arm on point+ Hail is a 5 Frame full screen punish.
If it was 0 frames, you can punish wesker’s launcher (-1) You can’t do that.
Bionic Arm is actually 0 frame, but it HAS to be point-blank for that to be the case. I’ve only ever seen Dormammu’s level 3 beat it or trade point blank (which is pretty much instant point-blank).
Pushblock and assists take stuff that should be safe/unsafe and make them safe/unsafe.