There is far too much pressure on referees to "toe the line" from FIFA, UEFA and the FA.
Referees are like players; individuals with their strength and weaknesses but, more importantly, their own ways of refereeing.
Take that individuality away and we have cyborg type officials, incapable of assessing isolated incidents clearly.
Sad to say that the pro game continues to shoot itself in the foot and is still driving a staedy stream of football followers away from matches (along with other reasons).
I haven't attended a pro game since Bees drew 2-2 with Millwall at GP and I haven't missed it one bit (apart from the friends and banter)!