So instead of a kludge like the PC BIOS, you pick that EFI mess, where one of two main sponsors is your direct competitor, who directly turned around and create

So instead of a kludge like the PC BIOS, you pick that EFI mess, where one of two main sponsors is your direct competitor, who directly turned around and created an incompatible new version in UEFI (even before the EFI based Apple systems hit the market). So now Apple has to support an EFI version no-one runs, while integrating Intel reference code targetted at newer versions to support new chipsets. Well, it ensures job security for Apple's firmware engineers.