I read the article, I am the one who posted it. Don't talk to me like I'm an idiot.

The fact that Google gives the violation of their agreement as the reason doesn't mean it IS the real reason behind it. There are many other youtube apps (like MetroTube) that do the same thing, but they don't get removed. It's a fact that Google has been boycotting Microsoft for years. They blocked GMail syncing for Windows Phone devices, they disabled Google Maps for WP (it worked before, but then they just blocked all WP devices), and now they do it again.