MS's stance on no cd patching for AOC is that they don't give a ****. (Not to mention again that no cd patching is not against their ToS.)
On the other hand, if games played using voobly's client service are being used by 3rd parties, and voobly does give a ****, then they are capable of enforcing certain things, particularly on YT, who recently changed their copyright procedures to be heavily, heavily in favour of the claimant.
"You can't reverse engineer our games to access the assets or otherwise do things that the games don't normally permit in order to create your Items."
If MS didn't "give a ****" as you put it, then they would not have removed the Voobly links on Steam, that was the whole point of Zak's statement there, someone ask why the links were being removed, Zak answered, it was that simple.
Microsoft owns the game, Voobly does not(that may shock some on here), but thats another fact. Recordings are user created content and therefore belong to the users that created them. So Voobly is pretty much claiming every recording that comes from the community as their own property and demanding that the streamers and youtubers advertise for them. It would be better to be more inclusive and open to the community workers instead of trying to force them into anything.