I hope so! I love seeing hit area proc off of an AI, esp against a target with a lesser slayer or under EoO.
My only thought is you can also put those aoe's on a radiant, a double axe, or a magical shortbow and really dish out the carnage against large groups of spawn.
An archer has the same ability with a composite but can also use the shortbow for the first cpl levels. Samps can use WW weapons to keep hp/mana/stam topped off. But obviously, if you're doing well on spawns with your thrower just using glaives with hit area, that's awesome. I'm glad you went and found out for yourself!