SharkLord
Smash Hero
...Isn't that just Smash in general? We can't have everybody. What about people who wanted Jack Frost or Demi-Fiend over Joker? Those who wanted one of the House leaders over Byleth? Or if we're going for companies and just series, how about everyone who wanted a Tales rep over a Tekken one? Or fans of Kyo, Iori, Athena, Nakoruru, etc. over Terry?Then you have another problem: With only one slot left, upgrading an AT would only cause vitriol between people who wanted their favorite AT promoted and people who wanted to see a brand new franchise altogether, right?
Let's say Waluigi got promoted. What about the Isaac fans? People who wanted Alucard over the Belmonts or Spring Man over Min Min? Lyn, Midna, Krystal, Shadow, Shovel Knight, Bomberman, Zero, Knuckles, Takamaru, Sukapon, Skull Kid, all of these characters have big fanbases all across the world who feel they should be the one to get the "real fighter" treatment. Not to mention the overwhelming amount of people who wanted to see something brand new brought into Smash. You thought Byleth had a negative reaction, I promise any AT promotion as the final DLC in Smash Ultimate would be 100 times worse.
Perhaps Nintendo and/or Sakurai feel a Trophy is enough, I'll admit that's possible. But trying to pull the "But what about everyone else" card is meaningless, because regardless, someone's most-wanted is gonna get taken out of the running - Or, more accurately, almost everyone, seeing as we're on the last fighter anyways.
I just don't see the reasoning there. There's always someone happy and someone disappointed. If we're worried about people feeling left out, we might as well just end the franchise entirely. There's always someone who ends up outprioritized and left out; Why are ATs any different?