Would tanks be okay if SE swapped the damage between tank and healers?

[Aravell]

Pretty sure some healers can do more damage depending on the gear they have on but just in case please correct me if I'm wrong

Gear shouldn't even factor into discussion of inter-job balance.

An i730 MCH can easily outdamage an i710 SAM, that doesn't make the damage gap between them any smaller.

Same case that a WHM with an i735 weapon outdamaging a WAR with an i710 weapon doesn't mean anything because the WAR will handily outdamage that WHM every single time when they both hit the maximum item level.