I think about the reasons why they made the changes they did, and other than to cross-market their lucrative miniatures line, I think it was in response to a perceived need to make the job easier on the DM.
It's possible that WOTC R&D have gone too far in this respect, based on the limited feedback and noise I've seen already about MMIV. With the caveat that you can't use the internet to base your success or failure with gaming products, I imagine that there is not as big an audience out there for Monster Manuals with maps, classed versions of existing monsters, and so forth as they thought. I especially noted that comment of the second reviewer - the DM can do this himself.
WOTC are getting more and more focused on instant gratification end-user product. A mini comes with a card, all the info is there, pick it up and play. Stat blocks are designed to be grabbed and run with. Creatures are pre-loaded with options. In theory, this is awesome. In practice, perhaps it's way too much hand-holding. If D&D 4.0 comes with pre-loaded modular archetype characters a step beyond those in PHB II, there's a good chance that while it will be much easier to pick up and run with the game, the real gamer audience is going to feel talked down to.
What's the feeling here?
Cheers,
Cam