Wow, the iPad Pro is tough as hell. I never expected it to not be damaged from 3' dropped on its edge on concrete, let alone three more drops screen up and screen down. 6' drop on concrete to break the Pro is way beyond what any electronic device should be expected to survive. Normal mishaps like falling off a table height even to the concrete should not break the iPad, even with all its mass. Dropping on carpet should be a non issue even at higher heights.
Cuddos to Apple for a tough design.