And....Nice! Didn't even realize they'd done this till you mentioned it. Had to go to the "other" forums to verify.
Things like this happen all the time. There are dozens of achievements you can't get in WoW if you were to just start playing now.
Do I go on the WoW forums and cry that I can't get these achieves? No. Would I cry if I hadn't received a beta invite, and couldn't get this achieve? No.
Heck, in your post you call it a "retarded banner". You must not actually think it's retarded if you're so upset about it.
Get over it.
I don't care about the banner. I'm just questioning Blizzards moral integrity and way of thinking.
This thing means a lot to people who wanted to get into closed beta but couldn't. As I said, I see it from an educational view, calling something a "Feat" which is random to a big part.