It is interesting how different people view things..
One camp would rather sweet talk a 1000 pound animal with no languge skills into becoming a good citizen.
Another camp wants to pull on the delicate mouth, and introduce a block to forward motion.
I prefer to go for the correction short and sharp behind the leg to provide forward impetus.
Interesting thought though my good old solid cob in the UK did put someone in hospital, as he managed to reach down and grab a mouthful of grass while cantering up a hill
His novice rider wasn't expecting such a thing and came off.
I wonder if my method actually caused that one?? Yes that is a serious thought and question.