BlackCyborg
I am Arkham
I HIGHLY doubt they are limiting their characters based on an easily editable list. If they want someone in, they can simply have DC add a bio to the list, or just not link to a bio. That list is only there to cover current New 52 characters being represented so far. There's over a hudnred more, that aren't een on there. Not every character has debuted in the New 52, as well as not every character in the New 52 is on that site yet. It's just a theory someone had...nothing set in stone or proven.