You're out of your mind.
Star Wars being secretive has nothing to do with Disney. It goes all the way back to Lucas keeping designs close to the vest to avoid people ripping them off.
They've been using fake lines on set since at least Empire. Had code-named production titles since at least Return of the Jedi; meaning EVERY person working that shoot had to keep quiet about working on the project, are they untrustworthy people now?
Other movies regularly hide cast members being involved with a film to help maintain secrecy about plot points, spoilers, or tie ins. And that's even after the movie is announced.
Video game developers try to get half way through making their games before they even announce they're working on them.
And EVERY business on the planet chooses when and how it releases information about products it's developing (and a lot of development leads nowhere, and they NEVER announce they were working on something at all). That's no different from Disney, or ANY other production company not announcing that they're looking in to making a certain movie or TV show until they're in a position to make the most of it. It's standard practice.
Professional prop makers on THIS forum are legally bound to not talk about tons of projects they're working on, because it would give away information about movies and shows in development that aren't ready to be announced. Are they all terrible liars in your book?
Get your head straight man. I get that that you hate Disney, but damn.