I love the video demonstration.
*However, I'm about half way through and Bielsa hasn't commented on players receiving having faulty body shape in some instances. Sometimes they are too square on to the passer when receiving in space.
If they were more side on, they could face forwards more easily. Instead they pass back, because they would have to turn blind.
*A second point is the angle of passes. If players receive diagonal balls from opening diagonal passing lanes, they can simultaneously scan a greater proportion of the field of play as they receive.
*A third point is that the passer when playing forwards can give two instructions.
"Turn", if the player is in sufficient space.
"Man on", when the player is marked.