Two possible assumptions here are that systems are actually in control and that there isn't anyone looking, while we saw that if things get too heated the US govt can sweep in and shut things down. The reasons for it might be debatable -- I'm more inclined to believe that that actually played nicely into the hype train launched by Anthropic around Mythos -- but there is always a bigger dog watching.
The other assumption is that these systems are failing by accident when in fact a stronger argument can be made that they are like this by design.