That is most beautiful and recommended. In most areas however, newly planted trees need care in the first years. A lot of the new trees planted after the forest fires here in Southern Europe have died, because all the money and work power was there for the very visible replanting, but nobody ever really thought about the less visible ongoing care of the small trees.
A few years ago I looked into water harvesting with slow release to maybe improve the survival rate of plant-and-forget, but it is not easy in places where you have not lots of rainfall.
I guess the problem didn't exist in the above-mentioned case because he planted along a waterline. I imagine plant-and-abandon can be done like this, and then the planted areas could be extended gradually further away from the water line, to plant more trees in the shade and protection of the initial plantation once these start to thrive.