The point of the two videos wasnt to show which had a better piaffe, as neither are what are sought after in high level dressage shows, but both are extreme opposite ways of teaching it, whether those ibdividuals achieved the right thing or not. In georgia's video its clear she was just showing how to achieve a shortened trot, not really a dressage style piaffe, though close. While in the spanish one (I'd like to point out this is not done through any sort of fancy school, this is just guys getting their horses amped up for a parade teaching them to dance in place). They are not seeking a piaffe either, theyre just seeking a horse doin acrobatics and trying to look as flashy as possible. My reason for showing it is that the training style from the spanish group is very similar to what I see in dressage - a horse restrained from forward movement and force being applied to make them dance in place for purely cosmetic reasons. The only difference I see between the dressage trainers and the charro style trainers is thar in dressage they spend years of training building up to these skills and have clear rules and expectations on how the horse should use their body, while tge charros just throw any horse on a pillar with a bit strong enough to inhibit forward motion and beat em till theyre dancing.
Pardon my grammar my phone is awful. I don't think the tools are cruel, its how and why theyre used.