I dunno,
Microsoft has a pretty good way of protecting copyrighted material. Companies are going to have to use technology to protect its copyrights.
And I’m not sure how this ruling changes the ability of law enforcement to enforce copyright protections. It was poor before, and it’s still poor. “Joe Blow gave me his copy that he made after he legally downloaded it off the internet” was an illegal, but unenforcable, transaction before the ruling - and it still is.
What it changes is bearing of proof. Before law enforcement could prosecute based on just having an illegal copy but now they have to prove that the copy is illegal.