'Slow Boat to China' would be appropriate.
From my experience as pro referee and also, much earlier, a semi pro player, I can comment with some knowledge on Alamo's final sentence.
A referee has only a direct line of vision so, if there is some obstruction of that vision by players running to and fro in front of him/her then he may not see something that 100k spectators (or multi TV replays) see quite clearly.
The reaction of the crowd lets the ref know quite quickly that he/she has missed something obvious to others but he/she can only give what they see.
VAR was introduced to take away this anomaly.
Most folk wanted VAR. Now we have got it and it is here to stay. It will take time to check it and I can't see any problem with that as the laws of the game will now be followed and at least some of the cheating will be found out.
The basic problem with Cameroon is that they don't understand the laws of the game.
One thing I do find very frustrating is why obvious offside is not signalled immediately.