Most classes are target capped; so that's not a huge deal.
Revive pet and Spirit mend changes will hurt big time, but we're getting some good things in return as well.
I don't think hunters will be shit; but I think MM will be the go to spec as it was already target capped and still quite competetive. So relatively it got a huge buff.
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But was this really an issue in PvP ?
Killing a hunter pet for SV / BM is practically a silence/disarm. Having to spend 4 seconds to "dispel" your disarm is silly.
A good opponent can kill the pet and basically eliminate the hunter from the fight by just interrupting a 4 second cast. And a 4 second cast is insanely long in PvP.
I think the reason for this change was mostly based around PvE.
In PvE your pets could tank a target and if you were at max range, you could revive the pet before the target reached you and with FD instantly bring aggro back to the pet.
I'm not entirely against the change. IMO pet management and proper control is part of the hunter skill set. Mismanaging the pet or just not caring shouldn't go unpunished. But IMO we should have the tools to actually manage the pet then.
Because with the low 100% base run speed (especially since dash autocast went shit); the nerfed mend pet since Legion and dodgy pet AI they are putting us in a situation where we simply can't always manage this even if we want to.