I actually registered on this board to voice my agreement for this. (I was planning on posting it, but am now just going to support you.)
Tank enchant options suck. Blood Draining is easily as viable, if not more, than mongoose or blade ward. It's rather surprising it's given a "zero" rating. I mean, even if you think it's not optimal, wouldn't it at LEAST be a 12? Or so?
Kind of annoying. This enchant saved my life 4 times in Ulduar tonight.