Uh, not quite. According to this, Fox has a tendency to wait until May. The only show I know of in recent memory that not only had a full 22 episode Season 1 and was then renewed after just 13 episodes was Heroes. Even 24 didn't get a 2nd season until the end of the first.

TSCC wasn't going to be renewed almost instantly in the middle of a strike. Remember, the series started during the strike and the strike only ended a few weeks ago. Now that they know they can have the writers actually write the show, they can make a decision about bringing it back. And I tend to agree with that site I linked. With T4 coming next year, they'd be crazy not to renew it. There's no better way to build a following then to get people interested in a show and have those same people go see a movie.