This is flawed since it goes against the very foundation of what Ultimate is supposed to be about.
First of all, Sakurai stated in E3 that the goal of the new method of unlocks is to feel like you're always recruiting popular (OK not everyone in Smash is popular anymore but whatever) characters on your side. I understand that it's nice to play as your favorites from the get-go, but that ruins the idea of cherishing every new unlock and enjoying them as the come that this game is supposed to be about.
Secondly, the goal of this game, as are most new major first party releases on the Switch, are to go back to their old roots (specifically N64 roots): Odyssey returning to the SM64 platofrming, K:SA combining abilities like K64, Super Mario Party going back to traditional gameplay values, and even BotW exploring the limits of a Zelda game like OOT did. Ultimate is yet another example of re-creating the glory days (I guess "glory days" isn't the best way to put it, but you should get the idea) of the N64: Starting with only the original eight, and unlocking the rest of the fighters as you progress, like you're recruiting soldiers in an army, which is a genius move, considering the new World of Light adventure mode.
And by the way, you made a thread *****ing about character unlocks earlier, so making it again entertains and impresses no one.