JFTDWS
+++ Out of Cheese Error +++
The horse is clearly not right behind and the first woman had no clue and no independent hands, the instructor even says how crap the saddle is. However if you removed the lameness, the saddle, the first woman and the weirdly aggressive 'patting' the principle behind the smack instead of nagging is sound.
However what an awful video to be putting in public.
This. I'm completely ok with the smacking. The first rider is beyond ineffectual, the horse looks lame (less so towards the end when it's moving forwards though) and the instructor is clearly having to correct the saddle slipping, which isn't on.
I'd smack a horse doing that to me (minus the other issues of tack / rider / lameness) but I wouldn't stick the video on youtube!