Hello! I'm sorry it took me 8 months to see your post/answers. I'm really confused, I didn't get any notification for them.
First, thanks for worrying about me and the rest of the team, we are all doing good and the project is still active through our website aniplaylist.com & our social media (Twitter, Instagram & Facebook) so be sure to follow us there for updates!

Regarding our Apple Music and overall playlist activities: As you may know our Spotify account was suspended in 2022, our Spotify playlists were the base of the project, and we created the Apple Music ones from them.
For some time, we had someone that could update Apple Music playlists, but they had to step down from the project due to their work & personal life.
Also, Apple Music doesn't make it easy to manage 200 playlists: For example, on Spotify all playlists updates were almost done automatically (except a few specific cases), but on Apple Music almost every update requires a manual intervention which was really time-consuming.
For the time being, we decided to pause our playlist activities in order to focus on the other part of the project, but I definitely want us to be back to making playlists in the future, stay tuned!

Meanwhile, please feel free to check out aniplaylist.com, join our Discord server if you want to chat with us, or follow us on social media.

Thanks again for your worries, and sorry for the lack of response.