Yes, there's a certain reason the rounds are up to that number. It's really to control and avoid that scene when a sudden strong punch has been thrown to the body part which can cause the death of the boxer.
You'll never know if it's on the head, back head, or even on the abdomen part could also cause death when the internal organs of the boxer that have been hit are delicate and will cause implications inside or hemorrhage.
Watching the recent deaths in boxing, this year 2022 Arest Saakyan, death to opponent Igor Semernin, Simiso Buthelezi's death to opponent Siphesihle Mntungwa, and Luis Quinones's last opponent Jose Munoz, well all causes of death was head trauma or injury to the head, Notable injury fighters can not stand up and unconscious while Simiso Buthelezi was fighting a hallucination inside the ring when the referee stops the fight because Simiso Buthelezi never stop fighting that day, he keeps on going on, till the end,
Almost everyone knows those risks but just like what you've said, they can't do about it to make the sport much safer. I guess that's the end of it and for now, all they can do is accept the said risks while the people behind the industry is searching for some remedies without making the fight uninteresting. This is the sport they chose, combat sports specifically and it's natural that fighters will get hurt.
Well, they tend to just accept there are certain risks involved in boxing but they certainly want to lessen that risk, in the MMA the casualties are already lessened, and sometimes prevented, because of the stoppage so the lives of the fighters will surely depend on the referee's inside the ring because what I see with the referee's in boxing they will not access to stop the fight when they saw that the fighter is still able to fight they would continue the fight and will count to 10 that may cause brain hemorrhage while on the MMA when a certain fighter jumps to the knockdown fighter and will continue the barrage of punches to the opponent the referee would stop the fight in the act of saving those fighters, but sometimes fighters will get mad on referees for saving and doing his job,