This is my guess... not a bonafide fact, so bear with me.
There are people in the emerald club & up who are entitled to 8 seats. There are those in the coaches club who are entitled to 4 seats. I would guess that in the past season, there were those who had already joined the FSC at these levels, but due to a "full house" were unable to aquire their allotted number of seats. So... when more seats opened up, they got first shot at them. This is kind of explained in the letter from Mark Rudolph that cfm567b27 posted.