The above video features my assassin barely holding his own in 80lvl Villa.
The developers are already aware of "mob damage" issue:
The balance between monsters and players will be tuned throughout the TestLive cycle. It is not Live just yet :-).
see the source.
I say - about damn time, killing mobs en masse = fun, half-killing yourself in order to take down 2 mobs = not fun. Agree?