If the Allies had called off a whole military exercise just because one poor soldier was accidentally injured, let alone killed, we'd all be be speaking German today!
This cancellation
http://www.jpost.com/Defense/Article.aspx?id=282754 shows up the IDF's fatal weakness: it cannot tolerate casualties.
The moment Jewish boys start falling in real assaults and attacks, they are stymied or called off, or even retreats ordered, and yet more Jewish boys fall trying to extricate those already fallen.
In 2006 on the last days of the war in Lebanon, the Israelis just put their noses in to Lebanon, had 12 killed, and immediately withdrew in ignomy.
The Arabs/Hamas/Hizbollah/Iran know this Jewish weakness & will exploit it fully in the next round. If Israeli soldiers keep stopping to help their wounded buddies, Hollywood style, they will lose.