Completely valid argument. I can understand the impact of sustained announcements on "relationship" sales. But I think, from a corporate perspective, that because there's no way to track to ROI on that sort of intangible, it doesn't exist. Whether it's right or not doesn't matter if there's no data point. Ironically, from a purely social media standpoint, even the complaining counts as engagements which makes everything look fine, data-wise.
The Shining is still announced, and will still be an influencer for people deciding to attend regardless of WHEN they decide to attend. So will American Horror Story. While I understand calls to "plan" trips, trips are planned once a decision is made. If the data doesn't support that decisions are made in June, then it's fine to wait.
The homepage announces, "...monsters and maniacs. Explore nine terrifying haunted houses, brave five creature-filled scare zones, enjoy two outrageous live shows." Any VR house, as an up-charge, would be booked separately from the trip itself anyway. Enough is out there for the hardcores and haunt fans to make a decision. If most maybes aren't going to decide until 60 days out (when airline fares are typically lowest), then surging the info THEN is the smartest thing to do.