It was difficult to setup

I’m not really sure here - I just did the setup and you literally paste one command into your terminal. There you’ll find the Jellyfin IP and port, visit it in a browser and you’ll get a simple wizard which guides you into setting up your libraries. Which also is not complicated, you just select a folder where your stuff is?

So basically they are mining one of the most popular routes migrants are taking into Europe?

You don’t need a kill switch. If you’re flying F35 and the US decides to cut you off, you won’t get replacement parts. Some repairs are only available in the US, so your fancy bird won’t fly much longer