Is there some unspoken rule to not use Esuna/Leech?

[myahele]

So.. you're saying that grabbing adds isn't important? or are you saying you prefer dead healers? I'm not entirely sure what it is you think isn't important.

Its really as simple as this:

A Pacified tank (WAR) cannot grab adds, nor can they tank swap for mechanics that necessitate it. I'll give you one guess as to who those adds are going to make a run for though while your warriors are asking for that esuna/leeches.

Your Healers

I doubt that scenario happens too often and unless you're new to a trial, knowingly using berserk when you know the adds phase is near is just a bad move.

Also, you can use flash

In the end, most healers priority is healing tanks> then other dps > pacification. And by the time healers are done casting a cure/physick there's really no reason cast esuna on a tank with pacification.