I can refute the mailing list argument, but here's not the place for yet another argument about the pros and cons.
NNTP is not looking good for the Project. Please see, for example:
https://user-images.githubusercontent.com/192271/253798105-4...
At the time, mid-July: "twelve on-topic threads this year – overall, probably not bad enough to justify delisting."
NNTP looks far worse for other groups that are promoted.