Paul, The elimination of Spots and Music from the stream/internet is an ABC/Disney mandate. They do not want to have to pay the production airstaff extra or have to pay higher license fees for production music. They were afraid that the union, AFTRA, would want more money for the airstaff. Plus many agencies are not allowing their already produced spots to be played anywhere but on the air. it seems to be happening more and more.
So the easy and cheap way to do this is to feed only programing (ie. talkshows) to the stream and exclude all recorded material. This does not include news actualities which are fed to the stream during the news blocks. And strangely enough the Spots in net news