Ive been thinking about the puncheon thing. And its a difficult one this.
The challenge was so late that we were well up the field. He played advantage.
Now from my days as a ref, i think the law is that if its a red you have to stop game immediately. IE no advantage.
So given how far up we were, it would be difficult to decide to stop for the red as there was every likely hood we could have scored from that. Having played on he couldnt then send him off as its against the laws.
Maybe im giving him too much credit