Aside from "what is too much" questions, skipping DAS in the nes version of Tetris by tapping is something almost anyone who plays the game will do if they play

Aside from "what is too much" questions, skipping DAS in the nes version of Tetris by tapping is something almost anyone who plays the game will do if they play it long enough and isn't at all unintended behavior. It just makes sense for certain situations. And while it's not true for most 2d platformers of smb's era, performing repetative button actions to move faster than the standard acceleration curve allows became very possible in 16bit games and a later, and you'll see those used in speedruns all the time. Usually a repeated dash, but sometimes weird stuff like running backwards, jumping in certain ways (smb actually has one of these), or rhythmically pumping the shoulder buttons.