Balance, Homogenisation and Encounter Design: The Problem.

[Hatstand]

Instead of there being no point in having multiple jobs, I think the point is to not require you to level multiple jobs. At least in FFXIV it's easier to try another job as you can do all of them with one character, unlike with some other MMORPG. But even then, unless you're someone who like to level all jobs and can switch at will whenever the balance changes, it's still easier for people if they can stick to one job and know that it's always viable. Of course being viable doesn't necessarily mean having to be the same as another job, but depending on how developers decide to approach the matter, I would prefer they err toward all jobs being viable rather than to all jobs being different.

I meant there's no point in there being multiple jobs of the same role in the game. If the jobs are "Tank", "Healer", "Caster", "Melee dps", and "Physical ranged dps" then no one needs to level multiple jobs to be able to participate in top content either. And if the differences between the jobs are only cosmetic, then they may as well condense it down to that level.