My take on it is that, TEM highlights the issues that can occur before they happen and what you can do to mitigate them. Airmanship is a sugar coated way of saying 'common sense'.
What I have noticed ( I was also one of these culprits) is that the guys and girls highlight the obvious or reoccurring issues.
For example at your home base, highlighting the fact there is terrain in the north of the field which has always been there before the airport existed, or the runway is wet etc.
TEM is designed to highlight issues that don't reoccur on an everyday basis for example LVP's, Winter ops, training flights, or even flying with a friend, and to add to it, who could also be a trainer or examiner (complacency).