He is talking about the movie content disc specifically, and there is no guarantee that if you get the NA PS3 version that you will get a Blu-ray version of the movie content disc. It's entirely possible that they are only printing them in DVD format since that is more prevalent in NA then Blu-ray currently.

Like-wise, there is no indication that you will get DVD's instead of Blu-ray if you get the PS3 version, only that the JP version has a Blu-ray movie content disc in it.

I think a better focus of the post would be to ask for clarification on if any of the NA version include a Blu-ray version of the movie content disc.