Uefa& Fifa are doing every thing they can to prevent video and goal line tech to be established fundamentally because this would be the dawn of their power or influence on games results.
Just think about it : referees will have a hard time awarding offside-goals or disallowing valid goals, giving unfair redcards, when the video would rule out any fishy decision they make.
This would be the death of their grip on games fate.
FIFA adopted it in the end after 2010, UEFA refused to preferring extra officials - UEFA boss then runs for FIFA president and this happens. All unrelated with no spin doctoring at all.