Usually not.
Investing is a risky business. Crowdsourced investing only distributes that risk over a much larger group of investors.
An honest founder might do his best to return the remaining funds, and Kickstarter might even decree (as the article suggests) that a refund be made, but there's no guarantee that any funds will remain by the time the project is declared a failure.
So the real question is: When you fund a project on Kickstarter, are you making an investment with a certain amount of risk associated with it, or are you simply pre-ordering a shiny new gadget? If any failed Kickstarter project actually went to court, this might be the single most important question to be raised.