scramjet,
Don’t know if this applies to your operation, some operators will advocate an increase in performance CAT (eg B->C) for and aircraft for the S/E case which generally will change your MDA and missed approach obstacle clearance requirements, if he is of the older generation he might have been thinking of the old published flap acceleration altitudes.
However I also think the FOI was hinting at the S/E minimum obstacle clearance gradient (2.5%). The 2.5% is nil wind (nett), with a tail wind you would need a higher ROC.
PS Bendy...good post I have learnt something new !