Derek Anderson had one good season in Cleveland, then he regressed the following year. And before that one good season, he was.......inexperienced! He was coming off a rookie season in which he only played in five games and threw five TDs and eight interceptions.
In the NFL, inexperienced players are constantly making an impact. I would rather go with a solid-looking inexperienced QB like Matt Flynn than a player who had one good season and then regressed. Plus, Flynn won a national championship as a college QB. He's not intimidated by being on a big stage. It's funny that we are having this discussion just three days after Flynn's best performance as a pro, the game in which he showed that he can put it all together and be a legitimate NFL QB.
The article is a general overview of the roster and is highly speculative, so I take it for what it is. It's more about asking questions than asserting strong opinions. I think it's written for an audience that is less informed than most of the people on this site.