They need to re-consider the basic premise. Preaching that slavish application of rules is all that is necessary completely misses the point.
The majority of PPLs fly 'for fun'. The framework of rules has its place but the lack of experience or understanding that the presenters seem to have of 'flying for fun' and why people do it starts them off on the wrong tack.
No PPL I know wants to be incompetent or dangerous, these evenings should approach safety from a support and coaching position - not "the CAA will prosecute every pilot who runs out of fuel" (when did you last meet one that intended to run out of fuel?).
Yes the rules are there and 'must be obeyed' but understanding how and why makes people safe.