What changes would you like to see in 4th job skills?

And I don't see many Bishops complaining about how Heal sucks as a mob skill during 15x.

It does its job decently well in 2nd job, and - what a surprise! - it's a 2nd job skill.

That's because they get alternatives later on. Hermits don't, yet when they use that very argument you're using to excuse Heal, it's not OK since their mob skill isn't "all that bad".