Zune music is losing support from labels? Who said this?

Friday's Vergecast was the first I've heard of this and I've only found this mentioned on The Verge. As far as I can tell, the music store is expanding to new markets and I can still access the latest music. I've even seen more independent music appear then when Canada first got the music marketplace in October 2011.

So where is this "losing label support" coming from?