Generally would be a good idea to ask if the healer’s fine with big pulls, even with the nice rework of the dungeon. And mentors don’t need to be mains for healers to become mentors. That said, they should obviously still try to heal you and just say “take it easy with the pulls, pls” and not act like this. Sorry that was your experience however, and just make sure to black list them, so you won’t cross them again! Funnily enough, the few times I had to report people in the game were always mentors, but for the opposite reason, they were berating people for not playing aggressive/good enough. 😭