After reading the news, I keep thinking "aren't they missing something?". Can't they seize this audience that come to the site to buy stuff? Maybe a spin-off from the original kickstarter, specially tailored as a sales platform.
Maybe they don't want to? They seem to like their knitted scarves, art-house films and interpretative dance about marine life quite a lot. Going for high-profile store-like projects doesn't actually guarantee success (they may get whacked by litigation, or people may become disillusioned) and puts their primary goal at risk.