Yeah bluetooth on my NUC hangs the kernel while booting. It's definitely a weak spot. I turned it off in the BIOS as I didn't need it (nor do I need WiFi). But it would have been nice to have.
Using just jails on my servers, no idea about docker.
FreeBSD has its own mechanism for that which is jails (and which predates docker!). If you're not using docker containers you pull from docker hub, I would recommend to use jails.