Gregory's ServerApple could unlock these.
They won't, because they can't verify the chain of ownership. You can't give 3rd parties the ability to unlock a laptop. That immediately renders useless the protections that macOS features like FileVault provide.
If there were a trusted way of doing an unlock, that would be great.
Blockchain? Maybe. But, I don't want my stolen laptop's data being available to thieves, so until a process is workable, to the scrapyard these laptops go...