Of course, the commercial games industry hasn't been very interested in making arguments with games, in taking strong positions on topics of any sort, let alone controversial ones like politics. We have begun to see some efforts to push harder at this boundary COD:MW2 is one example, but so are Deus Ex, Homefront, Farcry 2, Bioshock. I'm glad to see this progress, but of course I'd like to see more. In particular, we only seem to get the very faintest sense of an argument or position in these games. It's almost like it's just there for the publicity, but not too much publicity, because that might turn some players off.
It seems this guy doesn't know Killer7. That game was a compendium of these topics. The games he mentions here are quite childish by comparison.