Two thoughts. First thought is we shouldn't take anything from it. I don't believe in the knee-jerk reflex to engage in navel-gazing in these types of situations as if there is some sort of systemic failure to recognize and rectify. Arab terrorist kills an Israeli soldier, grabs his gun and opens fire on the public and some people were wounded and/or killed, not by the terrorist but in response. What more is there to know? It inevitably leads to the conclusion that there is a policy fix which is always a liberal conclusion. It's just as bad when conservatives try to Monday morning quarterback the thing. "Oh if I was there, I would've done this because I have this training or I know this about deadly situations."
Second thought: as unfortunate as it may be I'd rather hear of people being wounded/killed in the crossfire between the good guys and the bad guys than what occurs here in our gun-free zones and everyone is just slaughtered with no resolution until the bad guy blows his own brains out before the cops get through the front door.
I see news as something that exists to inform the public. But precisely of what is this particular news to inform us?
I can see little beside providing positive feedback to prospective terrorists on more effective methods of practicing their terrorism.