The defense alleged Oregon made cash offers to Bowen. Bowen Sr has not agreed or denied this claim. Just "I can't recall". The prosecution had not alleged this other than asking Bowen Sr the question.
Now Bowen Sr is a money hungry dude obvious from everything that has come out. Seems like a guy who would sell his soul for a fat wad of cash. NIKE probably did get in his ear since he can recall all the other offers specifically and not Oregon's offer if there was one.
He made the statement to the FBI. They showed him the FBI transcript.