Is Falling Fires bugged?

[tinkthank]

Every unit which got hit by Holy Pyre took damage; almost none took no damage. I was routing standard Indy troops easily with it. With FF, most of the troops I hit got off unscathed, even though more seemed to get hit.
Additionally, I found I was more flexible with Holy Pyre, since you need one less path of fire to cast it. Being availble earlier helped too.
How are you finding FF superior?

[Kristoffer O]

Area?