Earlier quoted context omitted.
I don't understand the issue. If Fairphone wants GOS can't they just compile it themselves with whatever unsupported hardware based security features disabled? Ditto for any given end user. It's not as though we're talking about a device with hardware specs locked behind an NDA and drivers that only support outdated kernel versions.
Simple. Fairphone doesn't want GOS. Forking GOS and porting it to a new device is a huge and unreasonable ask for an individual user. Even less so when you include the fact that you'll need to keep it up to date.
I wonder if fable or astra could wire everything up.