Most of that stuff isn't necessary just to replace Plex, the OP's saying them Jellyfin started them on a journey they're presumably enjoying, not that they needed everything there to replace it.

I think you're right the bar is still too high for most folks, although I will note that I think it's dramatically lower than it used to be. A lot of the tools are all-around way easier to deal with, tailscale makes a lot of "personal cloud" use-cases much more feasible, and then coding agents (I'm using claude code) dramatically reduce the labor costs of getting this stuff all working and fixing it when something goes wrong.