Effectively making FF Wed/Thur only (with opening and Halloween night thrown in) at the existing price point, then jacking up the price to add Sunday and then Friday successively makes a certain amount of sense. Locals hangout during the week, reserve weekends for the occasional guests (and the die-hards who will spend anything).
Obviously I feel you here, but I think we as a community tend to put HHN tickets on an island. In that time my WDW AP (actually a lesser version), Butterbeer, rent in Orlando, and drinks at Finns have come close to doubling as well. HHN is having a moment, it's the hottest thing in town, I kind of expect Universal to milk whatever cash they can out of it before its 15 minutes are up.