I see where they're coming from but seems a bit weird to embark your customers so they back your very specific demand to your employer.
I mean, sure, unionize, fight to make your job better or at least prevent it from getting shittier. But what kind of weight do people who use Kickstarter have in company policy? The only power they have is just to stop using it, and the employees obviously don't want that. They even had to mention "pretty please don't boycott Kickstarter" right here in the end.