Keep in mind, Netflix is one of the BIGGEST online video providers, period. Very few companies are going to need some sort of solution at their scale -- and those that do, likely have their own solutions. That means, your target market are smaller companies.
I just don't see Netflix interested in getting into a space that Brightcove and 5Min already dominate on the smaller web side -- and that custom Amazon, Level 3 and Akamai contracts take care of on the high end.
Netflix built this solution because it hopes that it will save them money and resources, somehow, I doubt that it's s scalable model (at least in terms of Netflix's required investment for support and sales) to offer to other partners.
I could be wrong, I'm just not sure I see the potential for a company that's biggest competitor is HBO.
You'd have to wonder if enough people would want to use Netflix's technology stack in a way that didn't include distribution on Netflix.