I think the idea of "We have too much of X" is kinda dumb when Ultimate is going to end with a roster of probably mid 80's-90 characters total.
Like, imagine for a second that say, Mario has this AMAZING 10/10 brand new game that introduces a new character that everyone loves and...
"Eh, we have enough Mario. Too many Mario characters already in Smash."
Yeah, I get it, Fire Emblem has "Muh anime" stigma against it, but if it IS Edlegard..... so what? Three Houses is a fantastic game that's gone on to win awards. I don't see any problem here aside from people gatekeeping thinking we have "Too much" of something, in something that can theoretically never have too much of anything.
Everyone's got their own personal attachments to franchises or characters, So I can't exactly say I care much about FE. Meanwhile, I'm sure plenty of people would say 4 Capcom Characters is too many if I bring up Mega Man X as a personal pick.
For me, it boggles my mind that someone could say we have "too many" Fighting game characters(I've heard a couple people say it seriously), but ask for more JRPG characters as if we don't have literal dozens of them. People just have weird priorities.
There's also the idea that there's only so much space for this or that as far as new content goes that everyone wants/feels they need to fight for it.
That's part of the reason why I try to be vocal about wanting Characters like Mega Man X and so on, hopefully without coming off as irritating. Because I don't care that much about what "deserves" to be in or who "needs" to be in. I just would want who I like and think would be hype. Mega Man X is the definition of hype.
We might as well root for what we want. It's how we got Ridley, Chrom, D.Samus, Banjo and many more. People try to play these guessing games and care about being right
too much. A majority of rules that were made up by fans, most of which got blown up between Smash 4 and Ultimate as it is. Who cares what "HyperNintendoBoi64" thinks about you liking Tails more than Shadow. **** that *****. They ain't ****. If you want to shill for Tails, do it.
Just have fun with it people. For ****s sake.