I share your frustration with this incident and it does highlight a wider problem in Scottish Football but you can't objectively frame this as a Celtic only problem. It is an OF problem and has been for decades.
I agree that John Beaton was put in an impossible situation. I thought he refereed the game really well and was literally a couple of seconds away from being able to say job done. I thought the Maeda penalty call, he got right, the Slattery penalty call was also right. His onfield decision at the end was also spot on.
I have no doubts that as he was walking to the monitor he would have either consciously or subconsciously been thinking about the personal implications for him and his family of overturning the decision. Unfortunately for him in this particular instance, he was stuck between a rock and a hard place.
Had it been Rangers we were playing and Rangers were going for the title the outcome would have been EXACTLY the same.
Both OF's clubs have used intimidation and the weight of numbers to get what they want for as long as I have been watching football. To frame it as a Celtic only problem (or a Rangers only problem) dilutes the argument. It is based on a predudice that favours one club or the other. They both use power and influence to get what they want and have both been very successful at getting what they want. It is why they keep doing it. Jim Traynor was hired as the Rangers communications man to use his knowledge of the press in Scotland to do exactly this, spin the narrative, put pressure on the authorities in Rangers favour.
Rangers and Celtic are a collective. They are both a cancer on Scottish Football.