Here we go with the whining about nerfs. Placating away expensive powers randomly is just a brilliant design decision.
No 12 seconds is not enough. 12 seconds of immunity is a joke when it can put an expensive 30 to 45 second cooldown power immediately into cooldown.
Is switching from expensive spike powers to less costly maintaned damage even an option when you consider the ridiculous healing present in PvP?
I only ask because the passives are only going to get worse as more and more are introduced. I don't imagine they will get nerfed to any considerable degree since they do involve a bit of grinding and why upset most of the playerbase?
Who knows with luck the metagame may be able to shift to a less spike focused game if they reduce healing but improve NPC AI and we can all play in a nicely balanced less spikey/less uber heal world..... yeah, yeah, pie in the sky and all that.