Oh no by all means do preach. I was just about doing the same about schroot. :p
And, like I said, it’s not that I don’t like it. It was just too much for the rather small usecase I had back at the time. I’m pretty sure if at some point I move to a distro less featured than Debian Sid I’m gonna have to pay more attention to Flatpak and Nix again.
It makes snese they want to distance from the Minecraft name for that. Engendered annoying “but muh Minecraft” expectations, and there’s already the Mineclone2 aka Voxelibre “subgame” for grabbing that attention.