This and the corruption of which you speak are some of the reasons they're using video replay for the first time in the WC. Old guys like me remember when FIFA made the replay of any controversial call completely verboten. You couldn't even get the replay on TV. I guess this was to protect the refs but more likely it was to protect the betting lines. Now at least the world is able to see a blown call and there is a system in place to fix them.
Judging by the content of many of your posts, I’d assume we are “about” the same age...ish. Been watching international soccer for over 40 years. Similar to the way things unfold for mid majors against P5-6 competition, the tables are without doubt slanted so that the ball rolls in favor of the “big” soccer nations. The only thing I can think is that there is so much $$$ involved. When that is the case, I don’t dismiss the possibility for anything.
Just so you know, I had no dog in this fight. I’ve seen less obvious handballs called this WC. Like I said, I’m not a Nigeria fan, but they got absolutely hosed. But perhaps that’s just me...