Quote Originally Posted by ADVSS View Post
They can, or have done so in the past, but its not as big of an issue, as having to disequip your best(and probably only)weapon for a job to complete said quest. Even if theres easy workarounds(buy a cheap weapon, keep a replica in your inventory, etc) I 100 percent agree with OP that having only just enough space to hold 1 weapon per job, is a bit assinine.
Not sure if you missed what I was saying, I agree with the OP. If they allowed you to hand in the specific quest that upgrades a relic, as any class, it would create a fix to the issue without being a problem for the spaghetti code. You want to upgrade your BLM weapon. You switch to SAM or ARM or whatever, your BLM weapon is now in your armory and good to go. They could remove the requisite class lock just for that upgrade step.