No. Ten years does not produce a mature forest. Far from it. what is shown here is that forest soils must be deep and that it is mandatory to start with a deep starter soil for the initial seeding. It is really common sense, but it takes real effort that needs to also be mechanized
We have seriously contemplated using straw bails on top of a barren wasteland using potatoes to act as a starter for a new organic garden.
The difficulty will be arranging a good supply of material to produce a deep soil. Straw is obvious along with manure, all chopped into the base soil as much as possible. This takes robust equipment. It is going nowhere without time efficiency.
Not mentioned here is that random or not, local mix or not, it is necessary to also selectively prune and groom as well.