You could offer self hosting of those and no licensing for commercial products, but you then wouldn't have a financial strategy to develop the technology in the first place. Not quite as much at least.
A big draw is you don't have to give access to a 3rd party all of your code if the technology is client side. Since the server side is just managing/proxying 3rd party dependencies.
All that being said, I'd appreciate a more forthcoming statement of this, as it is confusing, bordering on misleading.
I love the technology though and I do have plans to use it.
