Comment by userbinator

Indeed. BIOS isn't perfect but it's small and simple and provides enough to boot an OS, whereas UEFI looks more like an attempt to create another OS to run before the main one. It's a great example of design-by-committee and second-system-syndrome.

Linus' rants on this topic are always worth a read: https://yarchive.net/comp/linux/efi.html