As to fear , I suspect you are right.As I said fear of the unknown is great ,actually greater than fear of a known quantity ,and many regimes tried in the past to increase that level of fear.
Sure a kid facing swats should be apprehensive , but not genuinely fearful, for fear has no place in education. TWP’s approach is more limited shock and psychology ; giving a ‘message’ to the student,
You can’t teach by cowing students into submission.