However ringing up an elderly gentleman on national radio to tell him that you have "f***ed his grandaughter" is very offensive.
But Brand didn't. He rang up Sachs, who was supposed to be on his show in person, and Ross shouted it out.
So Brand did not "ring up an elderly gentleman on national radio to tell him that he had 'f***ed his granddaughter'".
Neither did Brand tell him that he had f***ed his granddaughter.
Neither did any of this happen directly on national radio, it happened 2 days before it was aired. During which time, plenty of people had plenty of opportunity to prevent the airing.