Religion beliefs: Good or harmful?

In a private hospital, i was opportuned to witness a heavily pregnant woman being rush in on child labor. She was immediately taken to the theater and after some minutes one of the lead doctors came out and requested for the husband of the pregnant lady.
The doctor told the husband that his wife was short on blood and they needed to do blood transfusion immediately. The husband told the doctor that it was the same thing that was requested of him in the previous hospital she had been in the last three days of labor. Then he said “We are Jehovah witness. We don’t accept unfamiliar blood”. The doctor was in shocked and told the husband that the blood transfusion was very important and needed to be carried out to ensure the safety of both his wife and unborn child but the man remained adamant and told the doctor that himself and his wife had and are serving the lord with devotion and that both his wife and unborn child won’t die.
The doctor then told the husband that he will just have to carry out the blood transfusion with or without the husband’s permission only to be told to be ready to face the law in court if he did by the husband.
On hearing this, the doctor went back to the wife and persuaded her to plead with her husband has the blood transfusion would ensure her safety and that of the unborn child. But seeing that the husband refused to give his consent despite much pleas from the wife the doctor had no choice despite his fears of the wife not making it to the hospital but to tell the husband to take his wife to a general hospital which was more suited to handle such cases childbearing.
The husband lost but his wife and unborn child.
So the question is “Was the husband right to have stood by his religion belief?”