IMHO, I think Tribune wants to get the Gracenote brand out there among consumers more and moved the television EPG for that reason, as well as it making some sense for music and TV metadata to be together at ONE company. I would not be surprised if this is the start of some move to make Gracenote a direct to consumer product with subscriptions from consumers in addition to the current model of only licensing to manufacturers and receiving royalties/payments from them for use on the lifetime of the CE devices. I never saw that (payments from manufacturers only) as a sustainable business model, especially when some devices would DROP Gracenote access from subsequent device MODELS. Yeah, Apple and a few other companies are likely to never drop Gracenote anytime soon, but I would not be surprised if Apple, somehow, creates is own metadata database for it users only at some time in the future.
FWIW, Gracenote itself can be pretty UNreliable for metadata, especially for Classical music: wrong art work, wrong album altogether, foreign language listings, poor and inconsistent track listings, etc. This is primarily due to the fact that Gracenote is still a Wiki, and so is profoundly dependent on the quality of the info the "amateurs" are uploading. The terrible irony is that Gracenote is better than SOME other music metadata providers. Maybe the budget which would presumably be for BOTH TV EPG data and music metadata means they can hire SOMEONE to actually clean up the many dependencies with Gracenote metadata.