Those Automated Units never worked for me, because there's a huge flaw in the idea behind them, namely, the ship of Theseus
So, I can use any old part to repair one of these bots and it will work. Arm, leg, brain, cooling system, whatever, and it will work. BUT I can't do it with the power supply. The power supply only works for one robot and one robot alone.
That just doesn't work...
Maybe it was designed that way to keep the robots from being a threat--it didn't work, as we all see.
The Heavenly Host did the null face even more creepily.