

That’s basically what EFI booting does.
Initramfs’s main purpose is to load enough of a system to be able to load/boot the kernel and everything else from the hard disk. It’s also used for more complex boot scenarios such as loading LUKS and providing a password prompt if the root partition is encrypted.
Most of the last mile fiber network is passive (doesn’t require active electronics to pass the signal like DOCSIS/cable internet or ADSL).
Cable and DSL typically have the equivalent of UPSs in their neighborhood nodes, but they often go unmaintained.