Not only are you (turbine developers or whatever person[s] are responsible for the Firewall nerf) forcing us to change our play style by letting mobs save against one of our bread and butter spells, but you are also making it more difficult (expensive) to cast..
It's like giving your kid a toy... seeing that they enjoy it too much and stopped playing with some of their other toys... so then you half break the new toy and encourage them to play with the other ones....
I want to say something that will get me banned... but let me say this instead.
... I'm a ****ed off customer (at least for now)..