[dev1017] Make Cover a Job Trait?

[Lazus]

There's a game outside Abyssea where MP is finite and some of the new Voidwatch NMs have clearly been to the gym. Obviously not everything needs PLD's unique level of survivability, but not everything should, because then you've created the opposite problem. Not everything should be dependant on one job (tanking, healing, whatever), just like like one job shouldn't be useless at everything.

You right there is stuff outside aby (thankfully) but still usually a mnk, nin or thf is all that is needed for most of it too, pld may have 1 maybe 2 of the new voidwatch NMs that make them desire again, but it still limited.
How would making cover a JT be any ore worth it, pld still won't be able to keep hate, and if a evasion tank or a mnk with counter and a ton of hp can do it well enough to be cured bombed? (and this is for in and outside aby)