Inevitably the goal of a project like this is going to start the fiery debate around artist compensation, free content, and advertising in general. BUT this is a great way to really see (or rather hear) ML work.
It reminds me a little of some TiVo competitor back-in-the-day where you could hit a "skip commercials" button and it would try to get back to the show by some visual or audible change/gap. Since then, somehow we've lost interest in being able to skip commercials but I still remember fast-forwarding on my VCR and how it hurt that DVDs prevented even that.
This is solid progress on one side of the fence because you know the other side is working on new things too.