Living Dead and other DRK QOL in 5.3

[Satarn]

Except, there's a couple of things you all just keep conveniently forgetting here.

I am not forgetting anything - I have literally mentioned the purpose of invulns as something meant to save tank and healer cds and reduce overall need for healing, in my earlier posts - but you'd rather "conveniently forget" that, I wonder why.

The issue with LD is that with how much healing it requires now, there are more situations when while any other invuln would save you cooldowns, LD will not, since you have to heal the DRK to full within the 10 seconds time and that costs significantly more than it used to. Not to mention the issue of having to quickly weave/gcd a bunch of extra heals during raid buff windows if things align that way.

You can not say that it's the same as having to heal any other 1HP invuln or just regularly mitigated TB - those don't have a timer, which means often you can heal the tank just a little and then let them hang on low HP for a while as AoE heals, HoT ticks and fairy slowly bring them back up pretty much for free, which isn't something you can afford with LD. The only times when tank actually needs their full HP, is right before mechanics that would kill them otherwise or during LD, there's no need to top tanks after every TB.
Now, there are absolutely still times when using LD is optimal even without a WHM, but the other invulns get more such uses, which wouldn't be the case if the healing required for LD was reduced.