Why Is the MSM Ignoring Israeli Firepower?

Here's something rare: a mainstream media estimate of the number of Israeli artillery shells lobbed onto Gaza thus far. (I have no idea, BTW, whether this includes naval shelling):

"Former assistant secretary of defence for international security affairs Bing West, today an author on war-fighting and counter insurgency, told The Weekend Australian 'artillery is a distance weapon, and Israel has fired over 30,000 shells. In the April 2004 invasion of Fallujah, the US Marines did not fire one artillery shell. 'New devices, especially GPS and reliable individual radios, enabled the marines to co-ordinate a street-by-street, house-by-house search without using long-distance area weapons. However, the cost was 27 marines killed in face-to-face fights inside houses. The Israelis are unwilling to accept higher casualties by using such discriminating tactics'." (Israel aims to minimise troop casualties, Rowan Callick, The Australian, 2/8/14)

I can't quantify this (maybe someone else can), but I imagine that each of these 30,000 shells is infinitely more destructive than any Palestinian rocket.

As to the destructive capacity of Israeli aerial bombing, please note the following:

"In 2002, the launching of a one-tonne bomb on a home [in Gaza] resulting in the death of 14 civilians was the exception... Seven years later, during Operation Cast Lead, there was widespread use of the tactic of dropping bombs over densely populated areas in the Gaza Strip. Today, in Operation Protective Edge, the air force boasts of having released more than 100 one-tonne bombs on Gaza. What was once the exception is now the policy." (From admitting mistakes to an embrace of killing, 'mostly moral' army lost its way, Yuli Novak, Sydney Morning Herald, 30/7/14)

God only knows the full extent of Israeli ordnance raining down on Gaza today. So why isn't the msm media investigating and reporting on this?

Why is it that  all we ever seem to hear about are Palestinian rockets (largely of the pinprick variety) and mortars*, estimated by the Israeli military, as of 31/7/14, at a mere 2,670**?

[*See my 17/7/14 post Is It Rocket Science?;**Warning of 'new Gaza targets', John Lyons, The Australian]