Point being there is a billion dollar market, whether it is same game or not. There is a want, for people to want the latest. You can say the same about the latest Air Force Ones.(Shoes) or what's the difference between the latest iPhones. No reason to try to rationalize it.
And those crackers cracked 1000s of games, and wanted notoriety and the e-fame. It is a little bit different with one little game. You want the spotlight doing criminal activities, what do you expect? Your Voksi that you referenced was literally doing interviews after he was arrested and in the middle of rivalries
https://torrentfreak.com/voksi-retires-cyberpolice-raid-cracker-after-denuvo-criminal-complaint-180726/
If whomever cracked DDR, wanted it private - they wouldn't release or discuss it on such public forums such as this or public trackers such as nyaa.
They would release it on private gaming trackers such as https://gazellegames.net/ or https://www.pixelcove.me/. But them doing things discretely isn't a concern.