ASHES England V Australia

tight don' bash me as I'm not the greatest to understand Cricket but this run out that the Australian wicket keep did I don't understand all the fuss as in the innings before the England Wicket Keeper did exactly the same threw the ball at the stumps but missed

SO if its ok for the England team to do it why is it not for the Australians to do it too

Please give me serious answers no abuse this is just a question