Blood Draining should definitely be 15 points for tanks! Especially since pure threat enchants are given 15... which is silly because since when is threat an issue in the current state of the game where tanks would need to gear for it?
Executioner? Massacre? 100% threat and no EH, avoidance, or mitigation.
Berserking is 15 points? Seriously?! Armor reduction proc on a tank in ICC is bad news. That can't be right.
Maybe this is only messed up because I'm a druid tank so it's counting cat enchants instead of bear? In which case the problem is that it's wrongfully treating me as a cat and not a bear, which would be a program error. I don't know why it would do that because I have a bear spec, bear glyphs, bear gear, bear gems, and bear enchants.
Blood draining is a survival enchant with a smart heal at the time when the tank needs it the most. It doesn't matter that it's only a couple thousand; it could make the difference between death and raid wipe or surviving with enough health to have the big heals land before the next swing. It's also the biggest effective health enchant.