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

[Lillia]

As healer I remove everything that can be removed, at least as SCH I don't have mana problems
The only problem I have is to know what I need to remove in an alliance, I know that they have a debuff because they have that red ▼, but sometimes it's a unremovable debuff ((like resurrect weakness))
I remember that once I get blamed in Brayflox for not remove the poison in the last boss ((the tank was a flan, at 4 stacks he nearly died in each tick))... SCH don't have Leech until nv 40 ;-;

Yeah, I try to leave the alliance debuffs to the alliance healers but instead try to heal with them/res them if they die if I have the time and ability to do so. ( I remember SCH Bray, So awful.... ;-; )

*gives consoling hug*