I highly doubt it, since on Disney website, it clearly states aug 26th is the start of free dining. Where did u get this info from. It doesn't seem reliable.
He's saying for a check-in date of 9-22 .. it's available. You can check the online booking tool for free dining if you like. See the post for "Everything We Know About Free Dining"
It has narrowed a bit from this morning, but ASMu and Pop are still available as are some mods.. I didn't test them all.