You show your complete ignorance of airline operations and acceptable behaviour. If he is upset enough to have to do that, he is not in a mental state conducive to flying passengers. Your suggestion is nonsense.
A suggestion of San Juan instead should be treated with the doubt a complete lack of background knowledge of the events shows. I have no idea. But a Captain with years of experience chose a particular course of action. Someone reading the sparse information here is in no position to say they know a better way! And I'm not so sure silence speaks as loudly as you think!