for all we know they decided to let sony have software X.... If they did, there should be evidence (a licensing agreement, perhaps) of that decision. If there'

for all we know they decided to let sony have software X.... If they did, there should be evidence (a licensing agreement, perhaps) of that decision. If there's no formal agreement, the existing license has authority, and it's perfectly reasonable for the SFC to require adherence to the licenses of other packages used as a condition of re-licensing BusyBox to the infringing party.