100% healing is pretty OP, BUT, you will never use all of it (or you would be dead), and most importantly it has a huge opportunity cost involved.
In most situations you aren’t going to be able to get off a full 6s channelled spell that is interrupted by damage.
Either you are going to be losing a lot of throughput when using it in PvE, or in PvP you are going to find it very difficult to use. Maybe solo if you can CC someone you could get away with it, but you need a full 8s CC whilst they don’t have trinket otherwise you waste it.
I think the biggest issue Regeneratin’ has is the cooldown.
It’s not what the ability does, but how available it is. In a lot of situations I think Draenei’s racial heal is more useful, but it has a 3min cd so its just not available as much.
Last I checked, Haymaker didn’t Knockback players.
However, Regeneratin’ is kinda crap in PvP.
It is now 6 second cast time and breaks on damage. Even absorbed damage (like through TOK or Life Cocoon) breaks it. Meaning unless you’re using an invulnerability (like Divine Shield) you have to Line/CC all enemies and not have a single DoT on yourself to channel it. You also can’t block/dodge/parry while channeling, even when using abilities like Evasion.
It’s only really dependable use is as a Paladin. Not good for other classes.
People who complain about racials:
Never got gladiator in their lives
Never cleared mythic
Never cleared heroic
Never cleared a plus 10
Thinks world mobs are hard
Rival is an achievement
Takes random battlegrounds seriously
Never cleared the mage tower
Thinks Sylvanas is mean
So rogues can do it against every spec except for like 3? That’s not a very good argument.
As for the mages, as I already mentioned, they already do it with food. Heck, I play a frost mage as my first alt, I do it all the time! As a class with no healing casting invisibility while you’re clear of dots, running behind a pillar and eating food is a lifesaver sometimes for just a 30% heal before they get to you.
We’ll see how they nerf it soon, cause there’s no way it’s getting off the PTR in it’s current state. Personally, I think they’re either going to drastically reduce the amount healed, or drastically increase the channel time for the full heal. They already have a really good racial with the loa passives, they dont need a second good one.