Can you actually show proof of this working? I haven't been banned yet, but blizz isn't stupid enough to make it so you can transfer characters off a banned account.
You've never been able to do this in the past, and I don't see why blizz would change their system to allow this now. Even if it is a bug, it will most definitely be fixed quickly and those transfers most likely reversed, or they'll just ban your new account, too.
It doesn't matter if it's a suspension. A suspension is the same thing as a ban in blizz terms.
The one person that has transferred characters off their account started the process BEFORE they were banned. They saw the tripwire event and started the transfer process. I see nothing else from anyone else that said they were able to transfer characters after the account was suspended.