Just as a data point - it seems the new "only one card rule" with Alaska via MBNA isn't a hard and fast one. I applied last week online, got the "pending review message", and yesterday there was the new (second) card in the mail.
Now I don't know if it made a difference, but I was in an online "chat" with a rep and had mentioned this was to be a second card for my business (it legitimately is) and I have not churned them in the past.
I will post back if/when bonus points still post.