I mean they are. They allow hundreds of thousands of players to sideload a modded APK in using their developer mode. This is detectable but they tacitly allow it because it sells a lot of copies of the game and the headset.
The RIAA is the biggest detriment to any music based games success. Either you pay lots of money for every additional song or most the player base are pirates.
Maybe someday one will be released with Spotify, YT Music, and Amazon Music integrations. Advertising that you just need to connect your accounts and can use anything. But I'm sure there are a lot of people working to make sure that never happens.
Fwiw I think they were trying to make some broader point that downvoters were presumably downvoting because they are against piracy, but are hypocritical because they use ChatGPT which is even bigger copyright infringement.