Good looking squat! I can kind of see it both ways on stance. There's a lot that's good about using a narrow stance. You can set up easier, especially if you aren't in a monolift. Even if you do squat in a monolift, you will be much more stable.
I like my wide stance, I am stronger with it and I can pop out of the hole better. However, I have come close to falling over many times with max weight. This has never happened when I have used a narrow stance.
Also, I think some gear benefits wide stance more than narrow and some gear benefits narrow stance more. It seems like single ply and some othe more stretchy poly gear helps a narrow stance better, enabling the lifter bounce out of the hole, versus stiffer gear that just binds up and supports the hips of a wide stance squatter.