In case you don't quite get why I love Michel Thomas, it's to do with teaching. I listen for teaching technique.
Both my parents were highly respected teachers in different arts.
When I looked at NLP (now a bit of a cult) it was because the founders had studied great teachers, to see if it was a transmittable skill. It's still not clear if it is.
Certainly you can learn some basic tricks. Perhaps it's the few extra lifetimes of experience which make the difference. (That's for the Buddhists).