I don’t have a source for it, but I recall hearing that yes, their eyes work at a different speed than ours, and that’s part of why cats and dogs are generally not so interested in TV. Unfortunately I don’t know what search terms might be useful here since I don’t know if this has a technical name, but something like “refresh rate” or “fps” might help in the search.
The people who put this up are not paid enough to risk challenging anybody on this. They’re not crazy, they just need money to survive. Their bosses, on the other hand… Yeah, I don’t know. It’s amazing that it can make it through as many hands as it must have and nobody says “Are you sure?” Or maybe they did and they just kept being shut down.