I have to say, I feel McGarry tries the cut-back a lot more than just a hopeful cross. This being said he did give the ball away like that several times, but at least he's trying to play it to someone, rather than just whipping it in and hoping for the best.
And by doing that he set up the goal for David Ball against Macarthur. It's all too predictable, the defences have already worked us out by the time we actually get it close to the final third.