Dps jobs share at least 90% of their abilities

[Stormpeaks]

Yeah, and iirc it's because they don't want a situation where a DPS is shunned because it doesn't have the correct seasonings, so to speak.

If you look at this particular bit of job design as a way to influence in-game community behavior,it makes more sense.

And in turn makes everything absolutely boring to play because they are actual copies of each other