it is what it is
It is kind of interesting that ISP service has been kind of a bust. When SW first entered ISP, there was a lot of hoopla that ISP would be there NYC gateway. The building of the 8 gate facility was touted as something that would lead to a big expansion. Presumably, the 8 gate facility suggested that SW envisioned building up to 80 flights. Now, the small operation could fit into one gate.
Not sure I would call this "sticking it to ISP"--Presumably the cutback in flights reflects the market--SW would have a bigger operation if they could make $$ with a bigger operation. Still, it is clear that SW once had big plans for ISP and those plans were not realized. Some of this may reflect the move into LAG and EWR. But, the move into these airports probably also reflected the realization that the hope that SW would capture a substantial part of the NYC market via ISP was not to be.