It is obvious from one glance at the general discussion forum, that Blue Mage sparked heavy controversy within the english speaking community.
Some are excited, many others threaten unsubing, some are genuinely unsubing, and some are just complaining.
Between mentions of slaps in the face and accusations of entitlement, the community came up with several solutions to the limitedness of Blue Mage. Let's look at them and see if there is anything wrong with them!
1. Rebalance it/water it down
A lot of people would hate this. The current blue mage is exactly like blue mage. If that gets changed people would complain like they did with Dark Knight and Red Mage.
2. Give Blue Mage two versions. One balanced for solo play, and one for group play.
Nah. Not only would it be too much work, it wouldn't be pracitcal. Where would you learn how to use group blue mage? You wouldn't have the same rotation. Hell, at this point we don't even know if blue mage has a rotation at all? With different traits and abilities it will be like a different job you never played. You can't fight raids with a job you can't use. Or at the very least you shouldn't.
3.Just let it raid as it is now.
First thing first. I don't recall it ever being said, that Blue Mage can't raid. It can't use matchmaking and will have cap of 50 in 4.5. But it was never said that once it climbs to the same level cap as the other jobs, it won't be able to enter raids with premade parties.
Got that? Okay. Let us assume that it can't enter raids, because it is totally not balanced for that. Unbalanced can mean two things. Either it is too effective or too ineffective. In the former case, nobody would let it fight. It would just be a chain of votekicks till serios buffs come and it becomes OP. In the latter case it would be a necessity and other DPS jobs won't see play. In either case it would destroy the raiding meta.
4. Make the other jobs broken as well.
This doesn't sound all that bad on paper. Every job unique, inbalanced and fun. There is just one tiny flaw with this. It would require the complete rework of every job/class plus every boss encounter. That is an insanely large ammount of work for something that does not increase the ammount of playable content. Doing this only for Blue Mage to get into raids is disproportionate.
So I invite all those against limited jobs, to consider all this and come up with a solution that actually works better than the one we got now.