I do not understand what they meant - if they intended to mean anything - with the de-composing puppet. An in-joke?
My interpretation is: The artificial construct of a man striking the computer is/was running on the computer that was struck. So the artificial construct inadvertantly destroyed itself. Perhaps implying that violence is not a good solution. An odd bit of humor, but I liked it.
I understand it as a part of "crappy CGI" aesthetic.
SGI used to have a random selection of crying baby faces.
They used to have a bunch- this was always the best one.