Also I wasn't trying to be pedantic, I was trying to say that there's a difference between us seeing a trend and assuming it's a hard rule and an officially stated rule being broken.
Not a meaningful one in the context of this conversation.
Now I'm going to go through the tedious process of why N3ON is wrong about every single little thing because what I'm trying to say just isn't coming through in spite of how obvious it all is. Oh boy.
Only one M-rated character?
Per game. Yes.
Getting Snake in Brawl didn't result in getting a ****-ton of M-rated games added shortly thereafter, because he only broke the rule once.
Then we got one for Smash 4, and now we have one for Ultimate. We will not receive any more, because Sakurai doesn't break rules twice.
Nope, that wasn't the rule. We get a handful of third parties per game, because getting just one wouldn't please the fans enough. This hasn't been broken more than once either. We consistently get increasingly larger handfuls in proportion to how hyped up the game is, but never more than we "should" be receiving. So this follows my logic as well.
JUST Little Mac in Smash 4, and then Dark Samus and Isabelle in Ultimate. This isn't an example of a rule being broken twice as it is an attempt to get Super Smash Bros. Ultimate to live up to its name of being ultimate, so some allowances are given here and there to break softer baby rules like this one. And it's a soft baby rule.
Only one character with guns? (just because Bayo's are colourful doesn't mean they don't still fire bullets)?
Bullets don't matter. The color of the gun is literally what matters. So Bayonetta doesn't count.
Only one character without a Nintendo association?
Yes. Joker is the only one.