Jesus how much of a crutch do people need? I'm glad players need to be more accurate with their timing or risk being blown up. It's crazy how many kids I've slapped today because they have trouble counting in the single digits. If you think this is bad you should try Quake or even Halo.
Any sort of addition in this respect, even if it's just training mode would benefit things overall for people looking to improve their game. Why would anybody see this as a handicap? It's more of a quality of life improvement.
They could have hidden the stamina bar to blow up backdash monsters coming in from Injustice and Street Fighter, but it's there so you can coordinate and think.
Calling it a crutch is stretching when this could easily be a HUD indicator on the side like the stamina bars.
A lot of anime fighter characters have unique indicators for their own abilities.
Why would anybody think it would change the gameplay negatively? Maybe you should think a bit further down the line. These knee jerk responses are funny.
How is this proposal any different than what was already present in IGAU with cooldown indicators for traits?