Retired F4
I see what you mean now - I was thinking of a different definition of expectation pattern. That you have a certain desire and when you move the controls you think that the aircraft will respond to your expectation no matter what the reality is. This seems to have been the situation of the PF. However, your instruments should still be your indicator of what your aircraft is doing.
With unreliable instruments there are SOPs and ways of analysing the issue. CRM is also a vital tool. Korean Airlines 8509 is especially relevant here as it demonstrates how to and how not to deal with unreliable instruments. But in the case of AF447 we have the PNF seeing from his instruments that something was amiss but taking no action. This indicates a breakdown in CRM which no yoke would have alleviated.