I don't think it would ever be a real solo job anyways as far as mechanics are concerned. Even then, what's it matter? It would just be a glorified glam farmer and mount farmer at that point.
It's not that I don't want solo content, it's that when I want to do solo content, I don't want it limited to a single job. I want an alternate progression for my other classes that can be solo. Not a class that just feels thrown in. I'm not sure what people are wanting from a solo class in the first place. Never wanted it as a solo class I always wanted to do what it's done in other games play with others and have synergies with them. Those carnival fights are good enough for me as side content. Just have those up til 70, then at 70 turn it into a full class so at 90 it can do real content. Then you sync down in level as "unlimited" to do the carnival
I don't really personally care for Blu to be a "do everything" kind of class. It was Mostly used it for its niche skills, damage and white wind. It only felt really strong when it's niche stuff worked. A lot of its skills were often weaker or aqua breath was on normal non desert mobs. You don't need the OP heal though or mighty guard. Then tons of the rest of the skills like petrify and doom. damage dealing was their main focus. Not tanking or anything. They would buff up people like in the games but I think in this game they would fit somewhere around bard and rdm in xiv . They focused on buffing the entire party and often had weaker stats over all themselves. Like quina had tons off buffs with Freya. Pretty much the same in ff8 and ff5. BLUs physical damage was bad in ff5, 8,9. Often scaled weird too and a lot of spells weren't super powerful besides its niche uses.
Heck mighty guard could work like Troubadour and palisade. Then make off guard that is similar to piercing debuff or something but used for everyone to deal more damage.
Currently it's taking up a ranged dps slot and making it look like we have 4 classes to go in line with the others types like tank and healer when we don't.