Though I agree that based on different feedback that I've received from different sources on the SEP re-validation test some examiners can be more pernickety in testing knowledge, I would tend to side with RTN11 on this one.
I think safety is paramount above all else and sometimes people forget how incredibly dangerous it can be to fly an airplane and end up being complacent. I would rather over do it and make sure I understand aircraft performance and safety to the fullest. Best case, I score lots of brownie points with my examiner, worse case I'm prepared and I understand how different factors will affect my flight. It's a win-win!