I'm not meaning to take away from what you are saying, but your blocks are some of the very best pedestrian designed and sized the world.
American blocks are by and large, boring, stupid and hugely oversized. Making them pedestrian only would solve nothing when most towns in america are covered it "Stroads"
Since you know about StrongTowns you probably already know this but I'll leave this here.
This is why, in the USA, we need to address the regulations that require us to build houses like this: Offsets, R1 zoning, height restrictions, minimum parking, road width requirements, etc...
American blocks are by and large, boring, stupid and hugely oversized. Making them pedestrian only would solve nothing when most towns in america are covered it "Stroads"