Actually it's a pain for content editors that there's no built in revisioning or backup system. A simple versioning for files to move backwards 2 or 3 steps would be awesome! A simple content lifecycle as found in plugins (publish later) would be

Adding plugins to https://getkirby.com/plugins currently requires a PR to the website repo, which is (not impossible but) difficult to do on the web as adding new files in new directories is tricky using the GUI on github.com. A form-based process

Maybe this is a bit far fetched, but let me explain: I'm currently writing a Kirby plugin to connect Kirby with a service for hosting videos (Cloudflare Stream, Mux, etc.). Since those providers use HLS streams, they require a custom media player