Facilitating the download of something that previously was only available for streaming? Probably. I think he's on to something, though. You can get away with quite a bit as a search engine if you're creative in the way you present the search results.
They don't move that quick. Took them a few years to come after me with an old "grey area" site of mine, and it was ranked in the Alexa 500 for quite some time, receiving 400-800k unique visitors per day.
I hadn't considered that feature though. Don't you think the RIAA and MPAA would come after me in like 3 sec?