RateTheRef

I was at the SCG for this game and while it is always great to see the WSW slump to an inevitable derby defeat, the main talking point of this was a decision which was overturned following consultation with the VAR.
I've found it on Youtube, the incident starts around 2:27

https://www.youtube.com/watch?v=__S1bBsXH3I

I'd be more than happy to hear peoples views on this.

Chris Beath, rather unprecedentedly, came out on TV after the game to clear up the decision in saying that the decision was made because the offside WSW player fouled Michael Zullo (blue/Sydney FC no 7).

What are peoples thoughts on this? Firstly, was it a foul? I'm not that sure it was. IF it was, was it the correct decision to give offside/a foul, and finally, are referees allowed to show red cards to managers?
I thought the remit was that they just ask them to remove themselves from the technical areas?

Good ol' A League. Can't have a Sydney Derby with VAR without talking points! 

For me if it is not a foul it is offside as he clearly interferes with an opponent.
Correct to dismiss manager as well.
VAR assists in achieving correct outcome whilst commentator with no knowledge of law is the one who has the howler!