They wanted out anyway, Microsoft wants control and they were using Reddit just like DJI is using reddit: they were a bit forced to follow. This is a perfect opportunity to leave and make the support happen on their own platform. Other big brands will be inspired and will leave reddit too.
the way I read it was that Minecraft is a community that holds the contributions of its base in high regard, and that's why they can't associate with reddit anymore because reddit now stands for shitting on its users and destroying their work instead of cherishing it.
hence the comments about recent changes introduced by management affecting the community and how that's the reason they feel reddit is no longer an appropriate place.
At a guess if something like here starts becoming popular with people I suspect they'll comment here for example. Kbin is growing, see what happens I guess.