Are healers lazy or do some really live by "I only heal"?

[Shalan]

As a CNJ, some of our quests requires us to DPS, this is true, but the BULK of it is to make sure the NPCs stay alive or it's a fail. Try finishing the quest without healing the Great Tree.

It's the otherway around. Some of our job quests require us to Healing, but the bulk of it is DPS. The only two quests where healing is really vital (up to level 50) is Trial by Water (Crazed Deer one) and the Heart of the Forest (Great Tree), of those you can just stoneskin+Refresh on the Tree and DPS most of the time. The Trial by Water doesn't really require that you heal either, it just helps if you do (you can just throw one or two heals out while focusing on DPS). All others they either heal themselves, have more than enough HP to offset the incoming damage, or your contributed DPS is plenty enough to down a foe far faster than it can kill anything.

Once you get into the HW WHM quests you do focus more on healing, but by this point in time you should have learned that you need to DPS as well and be comfortable in switching between the two roles when necessary.

In fact, if I recall correctly the entire point of the CNJ class quests is to teach you that it's OK, even necessary that you do damage on top of healing, or has Sylphie taught you nothing?