The real problem

[Reimmi]

They kinda tried that in Stormblood and it just meant the non-synergy jobs like Black Mage were excluded from parties and jobs that did have synergy became lock-ins you had to take (i.e Bard and Dragoon).

I hate the 2-min meta as much as anyone but I really don’t see them ever changing it at this point. That’s more or less the only party support that devs will ever be allow to exist in ffxiv, because basically it’s too much work for them to balance

Balance be damned tbh, the game is incredibly boring catering to this stuff.
Even mch thats been memed as the worst job for a long time is still incredibly viable and i see it in savage/ultimate all the time, so i don't think it'd be that bad