Dear Dragoons. Your AoE is actually good.

[Alistaire]

Using AoE skills (such as Ring of Thorns and Doom Spike) is absolutely optimal in any situation where you are facing four or more enemies at once, however, if you ever drive your TP to zero in order to maximize casts of those AoE skills, you will do considerably less damage to that pull before the group dies than if you cut early and shift into a Blood of the Dragon rotation, spreading Chaos Thrust and hitting Geirskoguls.

Saying "four or more" here makes this incorrect, again there's a # of enemies where there's at least that # where you're better off waiting for tp to aoe. Generally around 5+ though at 5 the difference is minor. You can't honestly think if you have 12 mobs your solo rotation over 2 hits makes up for hitting all 12 mobs...