Considerin the time it took to beat it on Fury, and that only Avalon managed to beat the timetrial before the nerf, I don't think easy is an appropriated word xDTianan is eazy shiat
It's definitely not easy. The last boss can be a wipe fest if you do a single mistake and you truelly need a really good tank.
In Tian the "problem" is that everyone have to dps, including healers and dat sin boss can be a real bitch for tanks that don't have the right cooldown management of their defensive abilities.
Saw a couple of times tanks dyin there ... and some others destroyed by the haymaker of the last one, fun stuff