Ok, I actually do kind of agree with you on this. I've been baffled by AA since they first announced it. They've gathered together a whole bunch of characters who seem to have quite a few fans, only to put them together and kill them off one by one. It's like they're trying to alienate as many of their readers as possible.
I can see wanting to get in on the whole Battle Royale/The Hunger Games craze, but if you ask me it would have made more since to just pick one or two preexisting characters and then put them with a bunch of new characters. At least that way readers won't be losing a character they like every time they kill someone.