Well, actually one reason I proposed that was to get people to do tanking/healing, even if they feel "I just want to DPS". Just look at Arcanist. There's loads of people who likely only leveled it to have Summoner. But you queue up for a dungeon, notice it's taking forever, and say "Ok, I'll go in as scholar so I don't have to wait an hour to play, but still get xp for my DPS" Probably not the best way to get folks playing tanks and healers, but it's something.
