You completely misunderstood the quoted remark you responded to. The desktop security features in MacOS that interfere with unblessed binaries and libraries loading is a huge pain in the ass, especially for headless server use.

Yeah... attacks like LogoFAIL hit during the DXE and BDS phases when the firmware is acting as its own 'mini OS' before the handoff

Easier to comprehend here - https://vectree.io/c/uefi-firmware-architecture-principles