I hate to say this, but that video reminded me of a pitbull fight. The palomino tried to walk away and was subsequently led back and forced to confront the other. Then they went at it and you broke them up for it. If I was one of those horses, I would have been VERY confused. First you force the confrontation and then you break it up. IMO, this was a bad way to go about things. I agree with the person who said less human interaction.
*Dreams are within reach, you just have to go that extra mile to catch them*