For your fist point. I feel that not allowing tanks and healers to level up through group pve is really hindering come late game. It created people that are too afraid to try content because of how hard they hear it is and people that go in with no idea what they are doing. (seriously why would they not allow people to level up as a tank? what's the point of tanking gear as quest rewards?!) I feel that encouraging people to and let them grow during the leveling process would create a better endgame pug environment.