Ohhh. A Pugilist, no wonder. :P

Kidding aside, nope. This tactic is pretty common in dungeon instanced MMO nowadays, where nukers are the King of grinding. In other MMO, where open world is popular, have you seen anyone grinding killing the mobs 1 by 1? I doubt that, most likely party members are pulling 1-2 mobs each then AoE them all the way.