Look at the distortion in the bars (2:35) this causes undue pressure in the navicular area. One cannot expect this horse to be sound with that much distortion. The ONLY way to correct this is a transition to barefoot and a technic called "slipping the bars". Only then will we set the heels back under the horse and remove the pinch point that is created by the curved bars currently under the center of articulation of the coffin joint. This video was taken in 2015...how is this horse today?
If you think for a moment, your Technic, its any better and will help the horse ,then lats see it.its very easy to criticize. A good professional. allways respect other professionals.don't judge