Other parks added plenty of Icee stands, so that pretty much confirms it's an issue with park leadership and not corporate. These days, it feels like, once they have your money for the pass, they actively don't want you to visit, especially with how Pass "Perks" always seems to have the best "perks" reserved for those with only 1 or 2 visits. It kind of reminds me of the "Declining By Degrees" series Kevin Yee used to write about Disney's death by a million cuts.
Back on the subject of Haunt, it does feel pretty off-putting that the main "new" thing this year is locked behind a paywall. Allowing them in the mazes also kind of ruins the experience for everyone else, so it kind of feels like how the no boo necklaces have degraded the experience outside the mazes.