The clue comes from the girlfriend who said..."Thought it was just another fight...in a no big deal attitude".
Her "run Tray" story was a big flat lie.
No they are not. In fact I'd say most get pretty judgmental about other mothers child rearing skill set when their kids act in a TM manner.
Bottom line is the def needs to put forth an air tight self defense case so the jury has every reason to find him not guilty. Di Maio is doing just that.