Again, I've been pretty critical of refs in this world cup, mostly that they have favoured the tier 1 sides. This game is the perfect example...
BOK is under a huge amount of pressure, from both sides, players are chatting and screaming at him constantly, I even heard a few 'Bens' in there too (I hate not using sir lol).
The directives are hard enough to implement when you are reffing u15's, at this level everyone is a law expert, and everyone knows how they are trying to cheat the laws too.
An example would be Danty, cheering and waving his arms, while Mauvaka goes over the line, the issue is he has his back to the play, and is getting up in nowhere near a position to see anything, he has just been coached to celebrate every potential try in an attempt to con.
Refs face this coaching at every decision. They need backing from world rugby, and to make the laws clearer and easier to implement.
This is a problem stopping the game from growing to new fans also