Its funny how despite there being lawsuits and crackdowns on kickstarter projects going on, people still go around saying ~its gambling~, ~its a donation~, ~its whatever i want it to be despite the fact the terms of use and the lawsuits going on point otherwise~, etc.
Plus, just like Ludorum Rex pointed out, nobody is ~lol heckling the dev~ for possibly failing to deliver, since that is not the problem. A lot of funded projects fail and their managers/devs come out and tell people about it. Everyone gets sad, sure, but thats the gist of it.
The problem is completely and utterly failing at basic project communication, creating a hype for it by presenting the project as mostly working then basically going full radio silence then comming out with the fact he doesnt have a working version up and that the people he used to actualy keep in touch with the community actualy never even saw the game that was presented in the videos. Whats worse is that he actualy threw out a timeframe for it, failed to deliver, and then instead of admitting that he couldn't deliver things anytime soon and showing people the real status of things, he just kind of kept throwing out timeframes and failing them to the point he alienated a huge chunk of the community.
Nobody knew what the hell was happening. Nobody could go "hey, X and Y is happening to the project, yea, it sucks, but the guy is trying" because it was like the guy just kinda fell out of the edge of the world and even the people who supposedly had some contact with him would have no answers. People were actualy more worried about the dev himself rather than the project for a good while.
It is quite reasonable for the community to keep getting more and more skeptic about all of it considering how events unfolded. Remember that one guy who asked for a refund and make a blog post about how he was suspicious of the whole thing? Almost the entire community didn't agree with him and still put faith in the project. You'd think that a project manager would go "hey, this happened, maybe I should try to do some sort of damage control and actualy talk to the community now and show them what problems I'm facing", except that didn't happen until MUCH later, and sudden that one refund guy started to seem more and more reasonable since the dev just kept silent like a guilty child.