Hmmm, professional...
Its tragic to loose a comrade, but you don't respond by giving your opponant the PR scoop of the century by decimating a holy Islamic site. Its no wonder the Yanks are still in Iraq more than five years after the war started, they simply will not gain public support if their troops act like this.
I'm not saying that British troops may not do something similar sometimes, but I believe that they are much more professional than "we got really excited and decided to blow **** up" like the chap in the video was describing.