The issue that people are having with his review isn't that he finds fault with the game, it's that he's complaining about things that are central to the Alien vs Predator mythos.
His complaint about the motion tracker constantly beeping and breaking his immersion for example. Most alien fans know that it is precisely this that builds fear/anticipation in someone who's seen the movies. This is how it's supposed to work. Yet he singles it out as worthy of complaint. This alone points to the fact that he doesn't understand the point of the game.
This is not a typical fps. This is AvP. If you understand that, and try to utilize the canonical strengths and abilities of the species, then you'll find it's a good, solid game.
I hate to repeat myself, but that guy reads like a non-fighting game fan reviewing Street Fighter 4 and then complaining that the game has too many buttons, too many special moves, and too many characters to learn.