Yes, I think the other problem with this approach is the terrifying consequences if the blinky box get's hacked. I think the trick would be - somehow allow the

Yes, I think the other problem with this approach is the terrifying consequences if the blinky box get's hacked. I think the trick would be - somehow allow the blinky box to be secure (how do you even do updates if the networks you are "protecting" are not on the internet), this is difficult. And then giving the boxes away for free with a limited amount of stuff they can do without pen tester involvement. Still is massively problematic.