Kupo there are various ways to minimize button boat (some in terms of ToS some are of course not so I won't go in to detail.)

ToS Legal I believe are:

In-game macros (not ideal but works)
Not certain about keyboards that allow macros..I assume since you are still there at the PC there should not be an issue its not as if you are afk etc.. but I am not certain about this nor would they really have a way to check if you are using a programmable keyboard.

Since the dawn of SNES I remember having a turbo controller that would spam a button so I could "test my might" in MK lol Could do it manually but why when you can just hold a button down lol

Course you could be like some and spam one or two buttons in normals and nobody really notices kupo haha savage they would but normals..eh you can get away with 1-5 buttons.