I don't like the list that much. They make a weird arbitruary line on what is too many RPG elements to be a called a shooter, and then put Deus Ex, System Shock on it, which has more Role-Playing Elements than Fallout 3 and similarly craptastic shooting.
Have games like Deus Ex: Human Revolution, Halo Reach, Battlefield which by the majority considered better, and they considered better than Crysis 3, Far Cry 2, Rainbow 6: Vegas, bulletstorm at the time. And are somehow a lot lower. It seems sort of like they did top 20 or so and then just threw things in.
Personally I also think a lot of older shooters like say Goldeneye, F.E.A.R. hasn't aged well despite being important or revolutionary to the genre.







