In cases like this it's almost always some variation of normalization of deviance. If company culture doesn't strictly enforce callouts 100% of the time, it's

In cases like this it's almost always some variation of normalization of deviance. If company culture doesn't strictly enforce callouts 100% of the time, it's easy to get into a routine of everything being just fine 100's of times until it isn't. Really these sorts of things show there should be a failsafe mechanism that provides tactile/haptic feedback to the pilots if the other inputs are "fighting" theirs. Even an audible alarm isn't enough, as you'll likely get more than a few of those during events where it matters. Proper CRM of course should make this "impossible" - but in high stress moments any more layers of swiss cheese you can add the better.