Honest question: If every player/class/job is equal,who is unique? (Gameplay topic)

[Scootaloo]

You mean that Ramuh pet tank fiasco wasn't telling enough? If people have a way to make a fight easy by excluding a class and requiring another class, you can be sure people are going to enforce it.

You're relying on assumptions to back up your points and I fail to see how that makes your statement fact.

You can't assume everyone is going to play copycat and REQUIRE the same party line up nor can you assume players will prefer one class over another just because they have a skill that makes them unique.