It's fun that we're going to be getting previews like this. (IIRC, they hadn't mentioned that they'd be doing such.)
Personally, the lack of speakers is disappointing.
Points to a release similar to the post-Primogenitor Black Library-style Emperor's Children (where Noise Marines are a minor subcult) instead of the Legion that I fell in love with, but at least I can be happy for everyone who's happy about that.