While it's "rude" for the scholar to do this, if you cleared the dungeon fine then who cares?
When I tank I'm busy trying to figure out what to pull next, not looking at what my healer is doing. As long as my HP bar is full he can be dancing the manderville the whole time for all I care.

If you care that much you can try to
1. Pull 3 mobs, healer looking bored?
2. Pull 3 more mobs, healer still standing picking his nose?
3. Hell just pull every mob until the boss like it's a brayflox speedrun ＼(^o^)／

I had a Sastasha once where on the first pack of mobs the conjurer didn't heal me a single time, and I died twice. Not sure if he was an idiot, afker or a bot but I just quit right then and there. Be glad you didn't run into someone like that.