You didn't need VAR to see it was a penalty, that alone is on Collum. VAR should have come to his rescue but how a 'supposed top referee" cannot see that is a penalty is beyond me. He was staring right at it.
TBH it's what we have just come to accept in Scottish football as it panders to 2 teams, hence why I stopped going to Ibrox and Parkhead for years.
Postecoglu has just turned out like every previous bitter Celtic manager - great when winning, but moans repeatedly when things go against him. I honestly thought he was better than people like O'Neil, Rodgers & co, but sadly not.