I wouldn't say the hall of the novice "tells" or "teaches" you to do it.
It suggests it's possible, and explains what circumstances it is proper to do it in (when everyone is at full health and you're essentially idling), before reiterating that your primary role is to heal and that you shouldn't be DPSing if anyone needs healing.
It doesn't set any challenges that involve DPSing, it doesn't give you any more specific instructions (whereas it always tells you specific spells to use when teaching you about anything else), it doesn't suggest it's mandatory. If anything, the dialogue always seemed to me like it was warning against DPSing too much and letting your party die, more than it was warning against doing so too little.
But that's the hall of the novice. I think we can take it off the table when discussing whether healers should be DPSing in, like, expert roulette or whatever high-level content you like.
It suggests it's possible, and explains what circumstances it is proper to do it in (when everyone is at full health and you're essentially idling), before reiterating that your primary role is to heal and that you shouldn't be DPSing if anyone needs healing.
It doesn't set any challenges that involve DPSing, it doesn't give you any more specific instructions (whereas it always tells you specific spells to use when teaching you about anything else), it doesn't suggest it's mandatory. If anything, the dialogue always seemed to me like it was warning against DPSing too much and letting your party die, more than it was warning against doing so too little.
But that's the hall of the novice. I think we can take it off the table when discussing whether healers should be DPSing in, like, expert roulette or whatever high-level content you like.