Originally Posted by
Lysiander
I know the math, I read the posts and I never said anything about not caring for statistics. I stated that statistics only get you so far.
Seriously, we are tanks. It's our job to stay alive. It's not our jo to stay alive "most of the time" or "as long as variables x y z are true". There are variables in a fight we can't control and plenty at that. Damage spikes, latency, healer stupidity, overagro, the list goes on. However, there are also variables we can control. One of them is to make sure our baseline avoidance is a high as possible. If you want to rely on a proc to save you in a pinch, you are basically jeopardizing your raid. You are trading an overall higher mitigation in situations where you do not need it for a potentially lower mitigation when you *do* need it.
The math is correct and has its place, but at the end of the day, our job is to maximize our performance for the worst case scenario. That's when you have to perform reliably. You do not want to burden your healers with keeping track of your procs so they know when to heal more. You do not want to die and wipe the raid because you could have dodged a couple of more attacks, which would have been healed anyway and are now overhealed.
Procs are nice and they have their place, but do you really want to tell your raid "sorry guys, we could have killed him but my mongoose didn't proc."? I didn't think so.