To limit the probability that the braced wall panels will not be adequately sheathed or finished, which could lead to an inability to develop the necessary load-resisting diaphragm action, which could lead to an inability to resist expected lateral loads, which could lead to excessive racking.
This is to limit the probability of compromised structural integrity, which could lead to the excessive deflection or vibration of floors, which could lead to persons losing their balance, tripping or falling, which could lead to harm to persons.