I am unspeakable impressed. Praise God for intelligent humans. This gives the land minerals to feed the plants, and rejuvenate the grow. Planting shallow rooted plants, or plants that can search around the rocks to have deeper roots will be effective. Yes. I like this. Great job.

Having picked MANY hundreds of tons of rock from my family’s property, I really NEED one of those!!!

But I wonder what the machine does with the many surface rocks? If it crushes the rocks, I bet it takes huge horsepower to run it and also would be very hard on wear items inside. And is probably very expensive. 

I have seen videos of machines that pick up rocks, separate them from the soil and transfer the rocks to a dump truck. They also looked pretty neat, but again they probably cost a lot of money. 

All its doing is roto tilling them down from surface. 
Has no buddy seen a roto tiller with a shaping edge before? Think about it, thats what a 65hp baby tractor. And if you watch till end of vid you will see the rocks are clearly still there. They would be way better off to plow off the surface with a dozer or blade then roto till it. And in a area like that they could use all that rock for a project.