Denuvo has been fairly successful despite what the pirates say. Several extremely popular games have gone many months with no crack. DRM isn't completely pointless, but it does require securing everything for it to work. Denuvo would be pointless if it weren't for the various secure virtualization features which are built into the CPU itself.
Denuvo actually didn't promise that it won't be cracked forever. It promise the consumer it won't be cracked in N day after the release. Primary purpose is to stop the day 1 pirate from hurting the selling count hard.
The movie industry doesn't seems like use it in the same way.
It's kind of silly that normal user was prevented from watch the video normally while pirates do whatever they want becuase the 4k hdmi hdcp can be easily removed by just a dongle.
DRM in the movie industry is mainly targeted at device vendors instead of customers. They want control over the playback experience and have a say which features the playback devices offer to users. Something that allows recording parts or skipping of the ads? Not great! That's also why there is a Widevine device revocation database for playback devices, while I'm not aware of something like that existing for Denuvo.
Sadly, if they actually cared about the consumer, then they would remove DRM after those N days. Since they don't, I just don't buy these games (Sonic Mania damnit!) , and I'm probably not alone..