I am going to have to respectfully disagree with you on this one. Reason being? If I had done that with my horse, my dad would of taken my horses away from me and I doubt I would of been able to touch them in a while. However, I have NEVER chased my horse around a pen, I know how to read them and I know how to properly work with them.
You are allowed to disagree, of course!
I have done a lot of warmblood showing/testing and we chase them through through jumping shoots, I video sale horse movements at liberty and I have free lunged. All could have similar results in a flash. I had a year and a half old gelding free lunging in a five foot high round pen. I saw a look in his eyes too late to prevent him from trotting up to the wall and jump out. He was, also, so done with it. Ka Ka happens, especially if you have done this a long time.
Yes, people need to learn, especially the young. But, where do we stop wrapping them in cotton, sugar coating our responses and simply say, you screwed up and you were ignorant in what you did? When will horses stop being miss used and messed up training wise because were too worried or apprehensive about stepping on someone's toes or hurting someones lil feelings? A horse is a sensitive, fight or flight animal and reactive.
Hmm, you sound like you have never made a mistake in judgement. You have never had a horse step on reins breaking a bridle, never had a horse pull away from you and go galloping off, never had anything go completely wrong in some way. You have been luckier than I have, that's for sure.
If you can't work with a horse properly and keep the above in line, you can't leave your feelings at the gate or know what your doing, get someone who does or don't do it at all. There are too many stories out there of people messing a good horse up then someone else having to undo their ignorance.
I have been training horses longer than many of the posters here have been alive. I have been trained by the best out there, and I am extremely careful. Even so, I have had things go bad fast. There is simply no avoiding it if you have been around a while. The key is to learn from it. And, having the courage to post here allows others to learn from their mistake.
Will I continue to free lunge and put horses over free jumps? Yes, it is part of the business. It is always a gamble in too many ways.