I've been in the process of leveling multiple classes, and recently did both the CNJ and MRD level 15 quests. 15 and 30 are key quests, as they give skills, often useful ones, that you need to do your job. Sometimes these quests are actually challenging, as opposed to the first couple you have to do.

For CNJ, you need to heal NPCs fighting angry anoles, while fending off water sprites and helping to kill the anoles. It's a juggling act, and quite tricky. Especially as the NPCs aren't in your PT list, forcing you to tab between them to target to Cure, while continuing to fend off the water sprites and the anoles. Especially if the anoles start killing off the NPCs and start coming after you. This would be a great quest to do on MRD, to teach you how to tank and hold hate against multiple mobs. And what do you have to do at the end of the MRD quest? Tank? Hold hate? Fend off ten mobs at once?

Nope.

You stun a boulder.

That's it.

Earlier in the quest you fight one coeurl. A very easy fight that I could have managed on CNJ with no trouble. Anyone else see a discrepancy here? The last quest you do before you go into dungeons on a tank job has you stunning a giant rock. How is that teaching you anything about what you need to do as a tank?