I'll admit that in this case everyone is at fault, the producer didn't know what he was getting himself into and the pledges didn't really understand the risks involved with this particular kickstart.
But it's mostly kickstarter because they have created this system which sometiems doesn't worrk, usually for product and software projects.
Kickstarter should take more care before accepting these sorts of projects and they should probably use or create some organisation that gives these people more support and information about the risks involved and which works with them before they even submit the project.
I understand kickstarter can not itself get involved with these projects because that would leave it liable for failed projects, but i think that by NOT doing everything in it's power to ensure the project managers are well organised they are leaving themself liable anyway.
And possibly there should be an option to allow projects to stop getting pledges after a certain point, i've seen so many get in trouble because of problems caused by attempting to get out more rewards than origonally planned for, or prehaps the project managers or product and software projects should need to submit detailed plans showing exacty how they will be able to provide ALL rewards within budget; for instance quotes from particular T shirt printers and postage estimate from post office, etc.