Dude, I'm not demanding anything, and apparently it's you who is making assumptions. I also don't think I missed any previews posted here. Maybe there were some more on Patreon, I had no idea as they are usually posted here. So, from my perspective, it's not enough. So maybe it would be worth it to share them for plebs as well.
Also, no theories here, just a sequence of events which made me nervous. Of course, I don't think you're a milker, I really appreciate that (as much as a non-patron can). But I also know this industry too well to not be worrying. People mostly will just say, "Go ahead, do whatever you want, do WHATEVER you want", when in fact, you fail in meeting their expectations. Sometimes these people aren't your patrons as well. I'm not here to accuse you in anything, but I'm not here to encourage the misconception which is apparently common on this site and on Patreon.
I really think this Patreon system is so wrong. There's a reason why there are so many milkers. And you never know if a developer will become one eventually, as many did.