I see they have made the blame game public.
It would be interesting to see how it affects pilots in reality in a simulation, although it could harm your health.
I remember early in my training the CPL students went up together in a 182 where the pilot had oxygen and the pax didn’t and they had them performing a series of simple and complex mathematical equations above 10,000ft. The results were worse that expected and they were all surprised at the cognitive degradation at altitudes not considered to be able to affect you.
I’m not sure if they do that type of thing these days, too many safety management systems blocking the old school learning techniques!