Yeah, the way class skills are distributed not every class has an aoe ability for the first dungeons. Some classes dont get the first skill til 45 or 50. If youre on a class that doesnt have the option, you try to stick with the tank and use your single target combo/abilities to thin the packs. Each dead enemy is one less target hitting the tank. And soon enough you will have your AoE too. Its unfortunate that the classes dont get the abilities at the same time, but it is a fact of life that most everyone understands(and the newer players who dont know that you dont have an AoE are less likely to multi-pull anyway, so its less noticable).