Automatic unenrolment based on OU would be nice, but I don't really understand why anyone would allow devices in their organisation after AUE?
Now, I know Chromebooks are very secure devices, but that's only true as long as they are being updated.
After AUE there are no such guarantees, as any kind of bugs and exploits can occur and will not be fixed.
Just like with Mac devices (previously thought to be very secure always), we don't allow use of devices that no longer receive security updates.
Not should private citizens, which is why we don't recommend selling the devices either. We do send them off for recycling though, but my hope is that they are used for parts and not as complete devices.
This is also where I am a bit sad that Chrome Flex isn't readily available for install on any deprecated Chromebook. That would give such old devices a second life for those willing to put in the extra effort.
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