Ah yes, let's protect a suicidal person by charging them with a crime which they may eventually be able to expunge, but in the meantime will effect their livelihood. That will surely not create any problems which might complicate their lives and drive them further towards suicidal behavior.
That makes perfect sense.
Have you seen any examples of suicidal people being charged or prosecuted for attempted suicide? I can imagine that this could have opportunities for abuse, but not ones that are qualitatively different from probable cause writ large.