I don’t disagree with your point principally, however I feel that plenty of the frees are paid just because they want to, or don’t want to, and not due to incompetence.Said it once and I'll say it again - how the hell can the umpires of the peak tier of competition for a sporting code only be part-time employees? It's farcical.
If I can see a player dropping their knees whilst lifting their arm to manufacture a free kick from 10 rows back then an umpire 2 metres away should be able to pick it.
If I can see a forward being bear hugged from 10 rows back one of the 4 umpires should be able to see it, and a don’t believe that they aren’t.