A broken job can be fixed, but you can't fix nothing. AST needed an OP balance to get use, but HW was better for having them, not worse. I don't see how not having a healer is a good thing, and I don't believe then taking more time to work on a hidden healer job will make that job better. You need player feedback and data to get a job right.

There is definitely hope for full race options later down the line though, at least that's something. I don't have that hope for a new healer even in 7.0 right now if 4 years was too short to come up with a new healing job.

If the ultimate reason for these disappointments is "limited resources" then what can I say? I would question their prioritization but that's a whole other discussion.