I don't have time to count them all, but it appears there are just as many Giants PSL's for sale as there are Jets PSL's:
https://nygiants.strmarketplace.com/...-Licenses.aspx
Also, the Jets and the Giants are both listed as "partners" on this particular website. Makes me think that a significant amount of the seats are not being listed by suffering fans but rather by the teams themselves.
SAR I