The number of people who care is small enough not to affect any outcome.
It makes is substantially easier to work with known design docs, and RasPi want people to use their hardware in embedded applications.
It's not like you can replicate their hardware with just the schematic. Its awesome to see other filling the gap, but its a gap that has no need to exist.
But I think in some small part the RPi Foundation has captured itself and turned into a for profit company where the original mission takes a back seat.