When the Syrian armed rebels shell indiscriminately

Look how casually the Western media report the indiscriminate shelling by Free Syrian Army gangs.  Can you imagine the uproar and international reaction is those shells were sent by the regime (which is not above doing the same crimes of course)?  And do you notice that the UN withdrew its staff after the Sheraton was hit without identifying the culprits?  Can you imagine the reaction of the UN Secretary General if those shells were lobbed by the regime?  I mean, how ridiculous has the Western media coverage of Syria become?