I don't see people complaining about all the video games they have kickstarted to get whatever 1995 Cult Hit Part 4 made by an established well known developer from that era. Why does it have to be different for movies.
Because people who contributed got the game. people who put money in his movie get nothing.
Seriously? They don't get a DVD or download link or movie pass? What do they get? A warm fuzzy feeling that they gave money?
He explains in this video that he will be posting behind the scenes content regularly over the new 18 months. That's what people get by funding the project. He seems serious about posting a lot of content and it sounds like it's one of the major reasons he did the Kickstarter.
Because most people actually received a game at the end.
There were complaints/questions about Richard Garriott's project, but none as high-profile as this current criticism of Zach Braff.