On sale at 3am in East coast ?

I've known the game goes live at midnight Pacific, but I recently saw a blue post insinuating (the way I read it) we won't even be able to purchase the game until 3am in the East. Did I misinterpret, or is this the case ?

Here is the post, for reference:

http://us.battle.net/wow/en/forum/topic/1207991320?page=4#66

I can't tell if the post is only referencing past launches, or if that Cat will not be on sale even until it's midnight PST.