A little reminder that Sun Tzu "The Art of War" is not some grand masterpiece in strategic thinking. It is a guide aimed at nobelmen that were so far removed from reality, that they needed to be told things like "You can't just order a win in a real competition" or "If you don't give your soldiers food, they become weak and die"
The reason, why his literature created such a cultural ripple, is that telling them these absolute basic things, massively improved there performance on the battlefield. Not because it made them a grand strategic thinker, but because they no longer acted like spoiled toddlers throwing toys around.
Saying someone is a Sun Tzu-level strategic thinker, means they have an absolute basic grasp on reality and nothing really more.
So either 4D Chess is much more simple than regular chess, or this knob doesn't know the things he's referencing.