methyl,
Utter horlicks.
A short pitched delivery is not delivered to cause injury, it is a specific strategy that just so happens to mean the ball is aimed in the general direction of the head.
Yes it can intimidate but ultimately the bowler is looking for the batsman to 'sky' one off a top edge or direct the ball down to a fielder at fine leg.
It is a strategy that has seen at one time or another even the world's finest batsmen come unstuck.
Sadly, Phillip Hughes got one at full pace which he missed and was unfortunate enough to have his vertebral artery split as a result of being hit. Literally a quarter of an inch either way and he would have survived with probably nothing more than a headache, so let's stop all this silly talk about GBH etc, it's simply not cricket.
The short ball is an accepted part of first class cricket around the globe and would be seen by any top-order batsman as a challenge, as well par for the course.
Tragic though Hughes detah is, the focus must now be on Sean Abbott, who though no fault of his own must be in a dark place right now but the Aussies will get round him and give him all the support he needs, as will the wider cricket community. He has nothing to reproach himself for.
It is however widely accepted that he himself may never play cricket again, such are the nuances of being a fast bowler.