F.P. is an idiot and his comment made no sense, but I think it's pretty clear that the Phillies aren't going to keep selling out their stadium when they don't have the wins to back it up. IIRC, attendance usually lags around a season behind team results, since the size of the season ticket base is such a big contributor and they only make decisions once a year. Don't get me wrong, I think the Phillies have built up enough goodwill that they still outdraw the Nats next year, but if they miss the playoffs two years in a row I think a lot of people are going to opt to watch them on T.V.
I just don't see the Phillies losing attendance next season. They are going to spend over the luxury tax threshold. The Phillies have a HUGE TV contract coming up and there are some rumors that they will try to create their own station like the YES network or NESN. The Phillies have the worst record in baseball and are still close to a sellout these past few nights after selling out every home game including the playoffs since 2009. I don't see a situation in the next five years that the Phillies won't be in the top 5 teams in attendance.
It was a stupid joke, but from reading Washington papers, their press seems to think the Phillies only selling 44K+ tickets against the Braves after selling your entire starting outfield is some turning point in the National League East. I just can't imagine the Phillies falling that far any time soon.