FreeBSD, needs _fbsd emulations to set EI_OSABI to ELFOSABI_FREEBSD. I have a pending patch.
Patch: https://sourceware.org/pipermail/binutils/2021-January/115156.html
This should be closed given discussions about this being intended behaviour.
The conclusion is that newer ports do not need *_fbsd emulations (ELFOSABI_FREEBSD).