I'm pretty sure they changed the rune designations because they were originally intended to be as such; I doubt they'll change it back in a future patch.
The question I have is, if you had the runes on armor before, do they get "unenchanted" when you install the patch, or do they stay the same and you simply can't enchant any more as armor runes? In either case, it's not really gamebreaking at all, just a small tweak that's easy to work around.