It's odd that this exercise isn't more popular. There's less restriction on weight compared to dumbbells or kettlebells, and it's easier to do than the barbell sumo deadlift, where many struggle to maintain proper form and end up training low back harder than glutes.
This version allows you to lean forward, keep your weight on your toes, and power through with your extension. This activates the glutes better, and makes it more advantageous for athletic performance.
Understanding the science of sets, reps, and muscle-specific fiber composition will make you sound smarter. Going to the gym and applying that knowledge will make you bigger.
Erick Minor's got a bone to pick: he keeps encountering personal trainers who make assertions about training athletes that just don't pan out in real life conditions, i.e. the gym and the athletic field.