SFGAm doesn't have HITP and our season pass page says the same thing:
Right but Great Escape and Great America were the 2 parks that popped up on the HITP home page, and were then quickly removed; so it makes even more sense now that Great Escape and Great America are probably getting HITP now that it's listed on both their season passes.
Edit: Ah, okay yeah poor wording by me in my original post. All the parks have it except La Ronde, Mexico, GE, and GAm, so La Ronde and Mexico were the parks I was referring to. But yeah, my point still stands that it makes sense now that GE and GAm will get it.