I can just see this as a backdoor argument for capital punishment.
"He's going to suffer from the intense guilt of his crime, it's for his own good."
It also shows a certain ageism and ableism.
If the suicidal person is young and reasonably healthy, their suicidal impulses are unhealthy and they need to be given a reason to live.
If the suicidal person is terminally ill, disabled or mentally ill, it's normal that they feel that way, so they don't need to be given a reason to live. Such attempts at persuasion are interference.
H/T: Alex Schadenberg