I can agree with some of his points and I do feel that Kojima just went way too crazy with cutscenes this time, but I do feel that the gameplay has improved greatly. I simply wish there was more of it (though, to be fair, there is at least as much gameplay here as any other major action game these days...the game only becomes much longer as a result of its cutscenes).
Act II was fantastic, for instance. During the segments prior to the boss fight, I actually had that old feeling I used to get when playing Deus Ex or Thief. I didn't spent the whole time crawling around nor shooting everything that moves, but rather, made my own path through linear yet open environments and took advantage of what the game offered. I thought it played beautifully and I would have loved for MORE of that style of gameplay. Previous games in the series were nowhere near as refined. The gameplay here COULD stand out on its own. That's not to say that the controls are perfect or anything, but they work well enough to allow the player plenty of freedom in how they play.
I was extremely disappointed in Act III, however. I mean, there were some nifty scenes in there (the motorcycle), but the lack of gameplay was crushing. They completely wasted the city environment. It could have been so much more. I could have totally gone for a Bourne style open city environment (lots of crowds, tracking the "guy" through said crowds, and eventually chasing him down). Perhaps allow the player to go through the initial train arrival scene themselves ala Half-Life 2 or something. They could then have followed that up by allowing the player to work their way into "Big Mama's hideout". Then, after the chase, they should have allowed you to work your way down to the harbor rather than just placing you there via a cutscene. I've stopped after Act III, however, but I've heard the rest of the game pretty much continues in that fashion (tons of cutscenes with little gameplay).
Still, I can enjoy the crazy cutscenes. I know damn well that it's all very comic-bookish, but that isn't necessarily a negative. One can still enjoy "high literature" while getting kicks from cheese. Same deal with movies. I love (and prefer) well written masterpieces but can still enjoy over the top cheese fests. Of course, I can just as easily understand why others wouldn't care for it, but enjoying the story sequences of MGS4 should not immediately imply that one has no knowledge or experience with quality writing either.
I really do think that now more than ever, Kojima has excluded non-fans of the series. This game would be almost impossible to enjoy if you had not played previous installments, I'd imagine. While everyone has hyped this game up as some savior of the PS3, I don't think viewing it as such is a good idea at all. There is no way in hell this game will work for anyone other than fans. Of course, in a similar fashion, all of those Harry Potter books received tons of hype and attention yet would be impossible to enjoy if you had not kept up with the previous works. I suppose MGS4 is friendly to newcomers than that simply because there IS a game buried within the fan service.