Then there's the security angle
If anybody is at all concerned about security, then control of routers and firewalls is important (assuming you've not installed stuff inside your cordon that sends all your secrets home). The only way to be sure you are secure, or, rather sure that there isn't embedded spyware and malware, is to compile and install all your firmware and software.
Naturally, if everybody used open source firmware and software, it'd be more difficult for the spooks to operate. So, though this is the FCC, it would be surprisingly useful to the spooks.