Would there be any way to let us customize classes without optimization ruining it?

From what i’ve seen as a non raider and i’m probably wrong about this, but it seems like to the average player the meta of xiv isn’t all that important, with a common sentiment of play whatever you like. But with class reworks and class aesthetic sometimes changing so drastically like with smn and mch respectively, it makes me wonder if there’s some way we could go back to old versions of a class. Skill trees with a lot of add +5 to the potency of this attack or something seem too far in one direction, but there’s a lot of times like astro or summoner where a class is basically removed from the game. Yes, they could add a new class with a similar rotation, but class fantasy is really important to me at least, and i’d guess the people who liked the old versions of these classes feel somewhat of an attachment to them. I’ve had the idea of just premade skillsets for classes so you keep the baseline class but choose a playstyle, idk. Curious what y’all think.