Would there be any harm in bringing limited jobs up to max level?

[kaynide]

It’s more that BLU can find ways to cheese content.

That is to say, right here and now, they need bodies doing the non-free to play content trials dungeons etc. Especially the later-game content.

If even a small percent find a way to do that content with BLU, that is less people to support new adventurers.

In addition, with certain loopholes, content tends to be much easier to do with competent bluemages (see Aurum Vale for moogle-tome grinding). Which again, once that becomes widely known certain groups wanting clears are encouraged to employ those party makeups, negating work done by devs to balance it for standard play. And since being good at BLU requires some build work/thinking/effort gathering skills you open a door wide open for toxicity (omgwtf you don’t have Final Sting!?)

Secondly, it’s just additional work for the devs to do- skills and such need to be done, and probably the carnival thing would need new stages or it’d feel half-arsed. If you’re just talking straight levels this can be hand waved, but without a doubt expect 4 new threads complaining about it day 1.