I won't say anything about moments of "superiority"
Anyway, since she was talking about something I didn't know anything about I thought it would be an opportunity to learn something.
"Superiority" may have been a poor choice of words (LOL) and certainly no offense was meant by it.
As for not knowing anything about it, as I said previously, a Western trainer would certainly know a half-halt, they just may not be aware of the term. I would almost bet that it's something you do quite often just in the course of riding.