From the video, the squat looked deep enough to subside most controversy on depth, but I'm always hesitant to pass judgement from a lone camera angle.
It's not clear to me which suit he is using - perhaps someone can shed light. A man of his overall size, squatting with such a flared-wide stance, gets a huge amount of 2-D material support in the seat of a squat suit. I hope he someday completes in one of the unequipped strength contests that are being considered, to see what he's capable of in that arena.
Jeff Lewis is indeed one of the elite.