People who go into a crowdfunding campaign expecting either a product or a refund with no risk for just one or neither, aren't the right audience for and shouldn't be participating in crowdfunding.
The delays and refund denials were not ideal, and perhaps they could have handled that better, but picking between complete insolvency delivering no product to anyone vs delivering the product to people who crowdfunded and pre-ordered, is the lesser of the two "evils" if people want to call it that, especially given the reality of the situation headed into COVID-19.