Yeah i second this.In McGree's defense, the defender went to make contact then pulled out.
McGree went to ground, without 1. rolling around like an idiot and 2. Not looking back at the ref for the whistle.
The ref made the decision.
Sometimes its reasonable to expect contact but at the same time avoid your knee bending the wrong way and being out for the season.
If riley did the old jeronimo trip where he stubs his toe into the ground to make it look as if he has been tripped then different story. Although in jeros defence that incident was technically a pen he just made himself look dumb.