Probably a lot of truth in what the Squatty Potty Toilet Stool advertisement is telling us. Historically, mankind squatted to poop and still does in many parts of the world.
That's why there's a market for products like this squatting base manufactured in China, which would be used in place of a toilet:
First encountered something of this nature decades ago in a campground washroom facility in Costa del Sol. Each potty base was bigger though, about 3 feet by 3 feet, and doubled as a shower stall.
Thought it was weird at first, but used it, and it worked fine.