The key words are "too much", I don't really think the outrage was anywhere as big enough that Nintendo immediately thought that they should put in Waluigi in Pass 2/bonus all of a sudden. I think they notice the demand for a majority of the characters in pass 1, but that doesn't mean that they're going to get in; at least right now.
Currently Waluigi AND Geno both suffer from being rivals to each other, yeah they're from different genres but ultimately, they are BOTH Mario characters. I don't think Nintendo's going to put them both in the same pass for that reason, even if they both have fan demand; especially since there are a multitude of other 1st party characters suffering from that same issue but from completely different series. I could see one of Geno/Waluigi in this pass, and then the other in a potential future pass; but not together. And currently I lean more towards Geno getting in right now compared to Waluigi.
The thing with Waluigi is that he has a mii costume that references him heavily AND an AT. Those are some steep hurdles to overcome. But who knows maybe he will overcome them. If we really aren't getting a mii costume upgrade like Fatman suggests, I don't really think we're getting Waluigi or Dixie (along with Rex). Really the only difference is that Rex has a full set, but if mii costumes deconfirm; then all mii costumes should deconfirm. As we haven't had any upgrade in the exact same game yet, maybe those characters will get in next time.
Okay listen, I know this is a Geno thread, and we're only discussing Waluigi because he might tie into Geno being the next Mario rep fighter.
But you don't have to outright lie to downplay him.
The outcry for his absence was big, probably the biggest in Smash history.
Even huge corporations and major news outlets like the Washington post wrote a full-on article on their website after he was deconfirmed for Ultimate.
Was it because of the memes ? Yes and no.
"Waluigi for Smash" isn't a meme, but Waluigi himself is memeable.
And I don't think memes is something to scoff at or dismiss when we've managed to get Ridley, Sans, and Steve because of said memes.
We've gone through hell and back on how ATs can be disabled on certain stages. It's not farfetched to imagine that Nintendo would make use of this to promote a popular AT.
And btw, Waluigi doesn't have a mii costume, it's just a hat that was ported from the 3DS' Miitopia (or whatever it's called).
There's nothing stopping Waluigi right now from being the next DLC fighter.
He was never as important as the core Mario roster, but as the years went by he became a staple of the Mario series, mainly the Spin-offs.
Nintendo didn't pick Waluigi for past Smash games because he was low on their priority list.
Even though the outcry was big and Nintendo themselves spoke on the matter multiple times prior to Ultimate's release, there was a plan to create more characters through Fighters Pass 1. If Waluigi were to be picked, it would be for the next season pass, which is Fighters Pass 2, not 3 or the next Smash game.