Denuvo hasn't been defeated. It can be implemented in various ways, from simple .exe encryption to embedding it into the games encrypted files and processes, which then has to 'phone home'. There are MANY games that have yet to be cracked, especially games with a heavy online aspect that are updated regularly.
As for the original topic, I have mixed feelings. I agree that I should be able to play my offline game the way I choose, but I also realize that I don't actually own the game or game assets, and that most countries prohibit modifying or changing proprietary code. I won't get mad about it but I hope it isn't a trend. It seems Ubisoft is the main company going after cheat happens trainers, starting back with AC Unity. Ghost Recon doesn't bother me, but an AC without being able to use a trainer might, because I don't have 50 hours to devote to every game I play anymore.
What are those "MANY" games you are referring to?. No one with a sane mind would bother facing Den to crack Fernbus Simulator or Handball 17. It is not worth it. RiME and Tekken 7 were both destroyed in less than 6 days!. Online-only video games shouldn't be able to be cracked anyway. As troubling as Den is still, it is not a problem as it used to be anymore. Especially with the recent advancements in the x64 debugging scene. Which is basically why Den held so strongly at the beginning as that area was lacking severely.