[zinok]

This doesn't appear to contradict the GP at all.

You have pointed out that when the machine locks out, there is an actual reason behind it. I don't think anyone claimed that it's simply triggered by an RNG or a timer.

However, why are the machines this opaque and difficult to keep running? I think the point has been clearly made, that an incentive structure optimises for low reliability. Nothing you said contradicts this.