Battle Rezzing as well.I urge you to point out other cooldowns that function similarly. By that I mean cooldowns that, if used at the "wrong time" end up outright killing you and/or your raid team.
Killing Spree isn't the issue, maybe a tad more control would be nice, or avoiding pets. But Combats issue is when it doesn't have cooldown available. Maybe a little bit of a damage boost for single target is what is needed.