crash detection is independent - it just rehomes xy and continues what I saw that correctly.
power panic - it emits a signal that server can read and if you have recovery on in server you might be able to continue. Main probelm on reconnect is that prusa will move z a bit up, but you can correct that.
Filament sensor was no problem as far as I remember. I think it just block communication until you have switched filament using the lcd menu.
