Honestly, what's worse than getting turned into an Assist Trophy is having your Assist Trophy removed without becoming playable.
Like, if your favorite character becomes an Assist Trophy, they're still somewhat there. It's not the absolute ideal that is being playable, but it's probably the next best thing, and definitely a step above trophy/spirit/sticker status. Just from the Nintendo side alone, there are a lot of characters I enjoy seeing, and about six of those are ones who, if given the choice, I'd rather see playable.
But damn did it sting that Saki was unceremoniously dropped from Ultimate. To me he was always one of the poster children of Assist Trophies, so to see him miss out was kind of a bummer, much like the case with Isaac, Helirin, or Barbara in Smash 4 (and Ultimate as well for the latter two). And those six characters I mentioned earlier? Most of them will most likely never become playable. Of the six, Waluigi is the only one I feel has a really good shot for next time, with maybe Spring Man as well. Takamaru has maybe an outside shot if the planets align. But Starfy, Dillon, and Arcade Bunny seem pretty firmly in Assist At Best territory unless something drastic happens, so the thought of them getting Saki'd instead sucks.
So yeah, an Assist might not be the pinnacle of an ideal, but it's better than the alternative.
I think it's a bummer that the ATs who seem likeliest to get removed are those from those middle limbo series who otherwise get very little attention anyway. Custom Robo, Sin & Punishment, Jam With the Band, Kuru Kuru Kururin, Drill Dozer, etc.
It's basically just Smash that gives these fanbases anything anymore, so to see it get reduced most frequently as a category for ATs is disappointing.
Honestly I disagree. While I doubt it would've happened during Brawl itself, I absolutely think Charizard could have gotten in on its own eventually, regardless of Pokémon Trainer. It's the second most iconic Pokémon of all time, only after Pikachu. And the fact that it was kept as a standalone when Pokémon Trainer was cut from Smash 4, while Squirtle and Ivysaur weren't kept, says a lot to me: namely, that Charizard can stand on its own while the other two cannot.
I honestly kind of agree with the other guy. Not enough to make definitive statements, you never know, but while Charizard is Charizard, he was also Charizard during the two previous games where there seemed to be no intention of adding him... while the Pokemon Trainer idea was the one that occurred to Sakurai before he decided who would actually fill out those three spots.
It's a different argument than saying Charizard wouldn't merit being added, which isn't being said. It's just that his impetus came from facilitating a different character. And then if transformations are proving a problem and you make the call to only keep one character, obviously it'll be Charizard, but that doesn't prove that Charizard would've made it without the Trainer first either.
If Pokemon weren't a series so dictated by what's current, I'd agree Charizard probably would be in regardless, but as it stands now, despite who the character is, I also kind of doubt it would've got in were it not for Trainer. It seems he is a beneficiary of Sakurai wanting to implement an idea that represents the series as a whole, and was
then chosen and kept due to who the character is.
I just don't think Sakurai would've gone back for a Gen 1 at that point. The reason he went for Trainer is because Trainer is the overarching protagonist of the series, and of which a Kanto depiction makes the most sense. Though obviously no one knows for sure.
If it wasn't added in Brawl, I think there's a chance they could have added Charizard in Fighter's Pass 1. It would be benefitting from some really good timing. Ultimate and most of FP1 is sandwiched between LGPE (remakes of Gen 1, obviously games that feature Charizard) and SWSH (the games where the champion's signature Pokémon is a Charizard with a fancy new form). It would have the opportunity to be both a promotional pick for two games and an appeal to the fandom - how many characters can claim to do that?
Those aren't the kind of Pokemon they choose to be promotional additions. It'd be nice if they were.
There's a reason that even with the Gen 4 remakes, people were still wary about the likes of Cinderace. Or that even with LGPE being the most recent game, the conversation was solely about which Gen 7 we'd get, other than some very fleeting Eevee support.
As much as I like the Newer Additions, it's important to represent the new after all, I definitely wish that the DLC First Parties added a couple more fan favorites here and there. Especially someone like Isaac from Golden Sun, who is a fan favorite who could have a full pack like that, but instead they jumped the gun and made him an Assist. I guess beggars can't be choosers lol.
To be real, Isaac being an AT wasn't what kept him from being DLC. What kept him from being DLC is not having a recent game to leverage. If there had been a Golden Sun 4 which came out within the proximity of Ultimate (but was too late for base), that probably would've been cause to promote an AT.