The thing is, you haven't provided any specific reasons as to why they should announce info/details earlier than they currently do other than saying it's a mistake that they don't. Why?
Myself and others have provided many reasons as to why they likely hold their official/detailed announcements until quite late:
- Past drops in attendance as people hold off their vacation plans waiting for the announced items (and what Disney also has experienced and are currently experiencing)
- current methodology sees continued high resort occupancy and with year over year park attendance growth
- a potential that they are not logistically prepared to handle large spikes in attendance that earlier and more mass marketing would likely produce
I haven't seen anyone articulate an argument as to why they should market their new attractions earlier and more heavily.
I actually have in this thread, 'll summarize.
- Only 6-7 Months from opening. (Most folks that are planning on going before the ride opens, are not going to change their plans at this point). To say they will have this huge attendance problem if they announce the ride now is silly.
- Missing the December/January travel booking season. Probably their biggest error.
- Cost to announce something on social media, is literately nothing. They don't need to start paying for a huge marketing push if they don't want to.
- Disney announcing new info on a weekly basis, and coming out with a ton of new attractions in the next 5 years. That have actually been announced.
- Having the upper-hand since SWL won't open until Fall/Winter, when Potter is supposed to open this summer. if there is a time to capitalize "before SWL" this is it.
- Lack of ANY real details at all. Just one Promotional photo, that was more of a teaser.
- Failure to provide any other info on all the other projects that are in the works.