I love it! He removes 99% of the active roots, chops the trunk and major roots without sealing them, plants the material immediately after collection in a shallow bonsai with minimal anchoring (twine) and uses what appears to be layered gravel as a substrate... and the tree responds by shooting out prolifically and even on some of the larger upper roots. If he posted this here on B'nut, he would have been roasted. Fwiw, I believe that tree will continue to recover from collection and turn into something special. I suspect the local micro-climate, likely very temperate and humid based on all the moss on those benches, really helps with recovery and allows for some wiggle room with post collection care.