I'm still deciding on whether it's challenging or cheap, although I will say it appears in direct contrast to previous monster tweaks that made sense for the most part and seemed to compensate for server wide lag, despite making the game a bit easier. I'm not saying this a bad thing and may just be OOO countering the AP buff along with bringing some difficulty back.
The only wierd thing about it I've noticed is the range of the attack seems a bit off at times, as in I was seeing space between myself and a zombie in FSC and was still taking the damage.
I am not suggesting anything change, so I'd like to avoid a nerf war and stick to the title question.
I think it is a good change. It is more predictable and far less glitchy than the old attacks. After so many monster nerfs, any buff is certainly welcome.