I think he's pretty much on the money. I mean, it doesn't matter in a sense. ODST could be crap and it would sell bucket loads (not saying it is crap, BTW, from the reviews it sounds like more of the same with just enough difference to be, well, different and overall great fun and well made).
But MS should never have announced or implied this would be an expansion. That immediately set up the situation where some (not all) review sites/magazines would go looking for evidence that the title is really a glorified expansion and not worth the money. I agree with him - the idea of a FPS Halo expansion just seems silly. This always seemed destined for a full release and as we can see that is indeed what happened.
Also, publicly shifting stance from an expansion to a full price title does make it look like MS is simply cashing in (again, not saying the are. I'm saying it makes it look like they are).
I don't see why he shouldn't comment on a public matter when everyone else (including you and me BTW) are free too.
It's his opinion, no different from one director commenting on another director's films, or one musician commenting on another.
Try to be reasonable... its easier than you think...
