Have you ever heard of Zen Buddhism? All the "advice" you get from Zen teachings is pretty similar to this, except with more focus on not-doing as an approach to doing.
Retiree transforms his life and solves all his problems by doing exactly what he was going before only... more carefully? And duel is certainly absurdist.
I enjoyed the film, but I think it’s intention is largely opposite what is being received here.
While the video certainly contains absurdist elements (the duchess scene gets me every time), I've always seen it as being sincere in tone. It feels a bit like a fable or a parable, in that it contains deliberately unrealistic parts to get the point across, but remains in good faith nonetheless.