There are many hurdles but one of the biggest I see is that there isn't a common/market leading way for independent films to self-publish their films to an independent streaming service. Something like Steam but for films. I'm sure YouTube, Vimeo, and others may offer the ability to do this... but none of them are winning that market or advertising themselves to potential viewers. And it isn't cost effective for a streamer to go after independent films that are very niche.