I decided to respond to a few points.

1. Split Screen multiplayer. This does not work for every type of game, and the mechanics of SSMP are very limiting, especially FPS games like Far Cry 2 with huge enviorments, or a game like MAG, which can host up 256 players a match. The reasons that this was so comon in the old days, was that old systems were limited to how many players could play and also online gaming was not really a factor until the last generation of systems (PS2, and Xbox, GC was not an online capable system)
Xbox Live and PSN have millons of users so I am not sure that "no one" wants to play games online.

2. Padding game length, I agree here, I hate wondering forever through empty environments, GTA4 at least has a lot to look at and some cool side quests to unlock. I think open world games can be enjoyable, but there has to be things interesting to look at and do in said vast world, otherwise its more irritating than fun.

3. Repetition, I agree with some points here. Sometime mowing down vast numbers of bad guys can be fun, I cannot get enough of Kratos tearing 1000's of Zombies a new one. At the same time agree that games that force you to repeat a long failed sequence are not good, thats lazy development. Also with the QTE again he is right on this one.

4.Making Killing fun good points here. I agree there should be a logical progression of weapons with a decent amount of ammo available (he is right on the money about RE5) and decent animations, also enemies should be varied (sorry Heavenly Sword, one of your minor flaws)

5. Buddy AI, I agree this has been a achillies heel in many games (Far Cry 2, ) there are some games that really do a good job with this. Killzone 2 and Uncharted 2 not only have AI smart enough to stay out of your line of fire, but they of actual assistance in battling large numbers of enemies.

World War 2 games, he is right, ever since Medal of Honor there have been a ton of WW2 based games and I agree it really is being done to death. The primary reason this genre is so proficate is that WW2 was a clear cut conflict that had a definate conclusion and good and bad guys. Also there is a decent selection of weapons to be had and there is just something very epic about battles such as Market Garden, Pearl Harbor, D-Day, Battle of the Buldge etc... that make this attractive to both gamers and developers.

6. Making a game that works, AMEN BRO. I have played a lot of "broken games" Tomb Raider is especially guilty of mechanical flaws. The newest Prince of Persia for 360 and PS3 frankly was a colossal disappointment because of stiff and poorly reacting controls. Mechanics are extremely important. So are proper collision detection, object placement and having as few "cheap deaths" as possible.

7. Graphics aren't everything, Tru Dat!! a pretty game with broken controls is still useless. However certain games feel a lot better to play with great graphics, games like Forza and Gran Turismo make you feel like you are behind the wheel of a Ferrari in part because of the realism, same thing with Ace Combat and Modern Warfare. Also Uncharted 2 would not pull off the amazing cinematic feel without being as beautiful as it is.

That said, not all games have to be bump-mapped into photo reality. Plenty of games are fun and enjoyable without being hyper-real. (Katamari, Viewtful Joe, Borderlands, XIII etc...)