So Can We Please Have the Adaptive Armor Mastery Back Now?

I was very sad to see it go when the masteries were revamped, as it was one of my favorite ones to use, and seeing as how lack luster the defensive tree is now, it'd be quite nice to at least bolster our tank stats a little bit with the addition of this mastery. Just add it as a single point skill on the second level like the assassin mastery in the cunning tree, giving us a solid but not overpowered alternative choice to the other two options for people who like to stack defenses. Thoughts?