Did they...?
"By contrast, Apple’s new cloud-music service — created with the blessing of the big labels, only uploads the songs it doesn’t know — and uses master files. In fact, if a customer has a low-quality copy of a song from one of those labels, Apple will automatically upgrade the song to a better one."
Besides, this ruling has very little effect on iCloud since it's already sanctioned by the music labels. What else would you have liked for them to say about iCloud?