A.H: I agree with your thoughts. When assessing candidates one has to consider their back ground and experience. 150hrs, no jet time etc. etc. One thing you like to see is a progressive accuracy in manouvers and a sense that the candiadte is trying their best and being self-critical. Smooth corrections and a sense of 'wanting to be there'.
To me those attitudes count far more than black & white accuracy and are very difficult to assess yourself.