When you read the article, it doesn't sound as impressive as the headline suggests
Given how popular fallout 4 was/is, I can't say it is too surprising that PC sold more copies in the first month than the xbox one tbh. If the game was released at the same time for all platforms on Jan 28th, the results would have been very different.
Apparently they have cracked the denuvo DRM and just aren't releasing anything because they want to see if PC game sales increase since developers always give of about PC piracy ruining sales.
Even if not cracked, it is only a matter of time until they work something out imo.
There have been reports for some previous games where it has caused performance issues and some even claiming damage done to their SSD's (due to the way it works) but I haven't really seen anything to back up these claims...