So I ask again, are you saying they deliberately killed the wrong man? Yes or no?
Sloppiness, incompetence and impulsiveness are all things you have to factor into any and every human endeavor involving more than 3 or 4 people, so it doesn't really matter how familiar I am with the details of the incident, the laws of human nature and fallibility still apply.
To the point, unless you can make a case that the Mossad exhibited a pattern of utter callousness toward bystanders in this operation beyond this incident, or that they intended to kill a man who had absolutely nothing to do with Munich or with Arab terrorism in general just for the sake of killing an innocent for fun and target practice, this still comes under the heading of accident.
You also did not mention whether any heads rolled within the Mossad or the Israeli government over this incident. That matters too.
================================
Yet you insist that you know that it was nothing but an "accident". Have a nice day.