Pilot DAR with hindsight do you think your STOL briefing was adequate? Or was the nervous type flying instructor jusr a know-it-all-numpty?
I ask because it may be easy to assume a certain level of understanding based on a passengers own flying qualifications or experience.
Your story about the Piper Cheyenne has reminded me of one of my training flights where I was flying a route to prove I could before being allowed to go solo. Pretty much same thing happened, traffic ahead that I didn't see early enough and my instructor briefly took control and banked sharply to avoid it. His actions took me by surprise and I thought afterwards that he wouldn't let me go solo. He did though and I'm still alive!