So like a few others and I have observed on other threads, Smash's button+direction controls are starting to take a foothold into traditional fighters. Granblue Fantasy VS and DNF Duel have adopted the scheme, and now Street Fighter 6, the biggest traditional fighter series ever, has it as an option.
I like that traditional fighters are starting to move in this direction, don't get me wrong, but I do have to acknowledge some of the drawbacks. Direction+special button leaves no room for selecting the "variant" of the special you want, meaning we can't choose to throw out a slower/faster fireball or weak+safe/strong+risky dragon punch. Also, AFAIK, it leaves no room for charge inputs, eliminating an interesting way to play and balance.
That said, command inputs that overlap with jump and aren't aerial specials can burn for eternity for all I care, and AFAIK, those were already virtually eliminated circa SF4's 2D Fighter revival.
Also, I'd estimate that command inputs are only 20%-30% of my problem with modern traditional fighters, so there's still quite a ways to go.