I never saw the fight, but If it was as grueling as it sounds, I have no issue with him with calling it a day if he did not have any more in him.

He is young and still on a learning curve, he deserves another chance. Why take a beating for nothing? It sucks when they go out like that, but he might do a complete 180 with more maturity and experience.

He'll get another heart test down the line and then we will see where he stands. Everyone deserves 1 pass IMO.