Probably, but the chance would be slim. The only reason I use AoEs is in dungeons where non-elites spawn or roam with the regular elites. It's about 50/50 on the usefullness of this tree. I have a 70% chance to resist interruption caused by damage when casting hellfire or rain of fire. Since it's only 2 points to fully level, I guess it's a matter of personal preference if you want it or not