I can't even read past the third page.
Seriously. These gaits are natural. Yes, there are people who will force a gait or train it, but for the most part, this is something you will watch these horses do out in the pasture.
I ride a TWH mare who paces. I don't like it and we're working on it, but that is her gait of choice. And if I let her, she will speed pace all day long. She also racks but I can't get her to hold it at a quick speed. She stepping paces as she walks in the field, and she paces as she wants to pick up speed.
In contrast, she has a TWH pasture mate who is a dream in the way he moves. He doesn't pace, he racks and he does it in the pasture. He races cars along the fence line.
I don't agree with making horse move like this on pavement.
You sore a horse to get a big lick.
You breed a horse to get a pace and a rack. There's not any cruelty involved in it.
There are uneducated and outright stupid and cruel people owning every breed in the world.
But to call gaited horse owners and those of us who put speed to our horses on their natural gaits "sub-class"... I don't even.
If you hate this, then I hope you hate racing too, and cart races, and barrels and poles and everything else that requires speed.