I thought rosado did as well as he could do, he landed some good shots, showed toughness, didnt back down. He even exposed some of GGG's flaws IMO.
But he had no shot in winning and there was no reason for the fight to go on.
He could of fought k9 but he would of got a much smaller paycheck, and no guarantee he wins that either. Gotta take the payday, no guarantees he would get another.