Given how much all of the armchair experts on this forum seem to know about MCAS, it is extremely hard to believe that a B737-Max8 pilot who flies for a competent operator (and ET is in that group) would be oblivious to MCAS' effects and the way to stop them. Surely all of these pilots would have been deluged with training information about MCAS issues over the last several months. Indeed, given MCAS' recent infamy, I think it is more likely that pilots are now misinterpreting nonMCAS faults to be an MCAS ones than vice versa.