To be fair, MCH and BRD are both caster ranged dps with the former coming out with HW (as much as they are unhappy about it) they are just physical caster dps rather than magic caster dps. A melee DPS was NIN released in patch 2.4 coinciding with the PvP update. So I will agree that it was indeed time for a melee DPS as that of all the play styles has been the longest to see a new release. It does bare concern though, and really I understand SE pretty much is going to hear complaints regardless of what they release, but saying that releasing a new healer or tank isnt going to affect the morale and wont result in the abandonment of the role for some of those 2 due to stagnation is kind of foolish. I guess they may release another mid expansion job at some point like they did with NIN but as they didnt with heavensward I am leery to place any hope on that. So as it stands healers and tanks will already be waiting 4 years for their next job and honestly for some that may be too late for maintaining their interest in the role.
