The MvC/DBFZ and Pokemon team analogy doesn't work, as you're restricted to 1v1 combat with no assisting. That super-overlevelled Charizard you're fighting? You're not using a whole team to take it down, you're fighting it 1v1 while your team shares a lifebar.
Well, that's
exactly how Pokémon is. You're still in a 1v1 setting, and if your single Charizard is your only strong suit while the rest of your team isn't on the same level to help balance out your matchups, you're still going to get steamrolled once he's down,
especially against someone who has better matchups against you. Like I said, you can try to power through against a team, and it
might work
, but you're at a bigger detriment than having a well composed team.
Same with old Marvel games like MvC (Outside of having limited assists), XvSF, and even Marvel Infinite outside of Soul Stone, once your best character got blown back and you weren't up to par with your secondary, you're still going to lose that match. And that can be equated to stocks, as using your weaker character against someone who's more skilled with their selection will cause you to lose one immediately.
Also, you have to remember health management factors into Smash, especially with PT, alongside being vitally important in Marvel games. Despite showing two separate health bars, it's practically one as you need to keep synergy between your team and have your options open.
My point is with using a singular Pokémon is more of a detriment than going in and learning how to use all three and the timing in which to use them. That's why so many people will drop
, only because they want to individually use one of the three and it may not work out for them.
I just said people used to team fighters would probably be more accustomed to the idea of learning all three and the advantages and disadvantages that come with them and composing a strategy around them, rather than relying on 1/3 of the unit.
I feel like there was a slight misunderstanding, maybe it was the way I worded it, but that was the point I was trying to get across.
But I agreed with your original point, just wanted to elaborate that some may be successful with the character moreso than others.