Heh, it feels that way sometimes but you just have to read between the lines. When I see discussions revolving around fractions of a percentage point my take-away is "Any of these three enchants will be fine for almost everything I tank". On the other hand, having made a few attempts on Gormok in heroic 25, I understand why even a tiny boost is important in some fights. I'm currently using Blade Ward, but if I get a weapon upgrade I'm changing to Mongoose - I agree that it clearly has the best glow :D
Dunno if every topic is only for the top of the food chain 50k health unbuffed type.