Doesn't seem like a very well thought out list. It's like they picked a few of the most popular games per year and missed a lot of classics.
Did you read that they said "it's what they liked"? Then agian, anything Gamespot or IGN or anyone else does the exact thing as well. They miss alot of games as well.
It is what they liked, and what THEY thought were the best for those years. It is personal choice. At least they don't claim like Gamespot, IGN or other sites claim to be the best lists and the truth.
I like it. Not scientific, and an honest truth. Trush me, if Gamespot or IGN did this, they would have Civ V in there as the best game ever.