Some of these suggestions are ridiculous. More cameras, more on field officials, more remote officials, full time officials, etc…
You know what you end up with? 3 or 4 times the number of penalties you have now…and then there would be bitching about too many penalties.
Bottom line…players try to get away with as much as possible, knowing every penalty cannot be called, and they hope they don’t get flagged at a key point in the game.