> binutils is included in the FreeBSD ports, which is a maintained collection

How maintained can it be if it's not tracking upstream and providing patches, even just to build it? The very premise of your question disproves this assertion.

Look, there was a time when gcc and binutils were the native toolchain on FreeBSD and you could rely on them working as well as they do anywhere. But they aren't anymore, and all the people with the skills to be maintaining a toolchain are working on other software. Binutils is left to rot, honestly.

This isn't because the FSF used to have a CI system, it's because FreeBSD used to have binutils users, and to first approximation it doesn't any more. You're one of the last.