As you said, this article is mainly aimed at the non-gaming audience, but I can't help but feel like Mr. Brooker ignores a few major points.
First of all, the gaming industry is just as filled with gimmicky cash-grabs as the movies. Maybe even more so.
Secondly, most if not all of the big budget games are largely based on classic movies. Aliens, Saving Private Ryan, Indiana Jones. The article itself even mentions that L.A. Noire borrows a lot of it's aesthetics from L.A. Confidential. There's only a very few games that have their own original setting, not based on classic cinema.
And lastly, the reason both these games are succesful has more to do with the infamous studios behind them (mainly Rockstar) than with gamers' high class taste.
This whole article feels a bit forced. Gaming is no better or worse of an artistic industry than Hollywood.
As for L.A. Noire. I'm on vice now, and I have to say that I'm quickly getting bored out of my skull. Plus, Cole Phelps has as much character as a dead fish.