That makes it pretty clear that this is a hardware obsolescence issue - the old hardware can't run newer android, and thus can't receive security updates, etc. The only real option is to cut off the old hardware in hopes they won't be left on and become a security problem for the owners. For a $600/month fee I would think Google should just replace the old hardware with a newer model, or they should have originally made the compute part of the system modular and upgradeable. But now it's just e-waste? I hope Google learns something from this, but they probably won't.
