This video was recorded at a volunteer groundschool where attendees got to ask any question they wanted to. Sometimes it's hard to put together the bits and pieces we learn into a good plan of how to apply them in an actual abnormality or emergency situation. The FAA wants us CFIs to teach using scenario based training, and requires DPEs to test using scenarios. This builds a pilot's ability to apply their knowledge in practical ways.
You don't have to be a perfect CFI to impart good stuff (just look at me!). But try your best to ask yourself "how would this affect me" "why do I care as a pilot" and READ the FAA Airplane Flying Handbook emergencies chapter, Chapter 18. You'll be glad you did.