The rule used to be, and maybe still is, that insurance companies would refuse to pay out on the death of someone who committed suicide. The Catholic church refuses to bury a suicide in consecrated ground. And a verdict of suicide would undoubtedly put greater strain on the widow than a finding that the death was accidental, even in these odd circumstances,because she could go through life blaming herself for the death, that he killed himself deliberately because of something she had said or done. That feeling may not be justified but is a likely feeling nonetheless.
Any one or more; I don't whether he was Catholic; may be applicable in the instant case. Coroners are very reluctant to find suicide if they can find any way to another verdict in such cases.