Was Super Bowl 51 Rigged?

I do not know about American Football. To me it looks like a heavily simplified version of Rugby League. So anyway, I was watching some of the Super Bowl 51, the game drags on for far too long for my liking, and then the players just push one another, there might be some game played but if you blink you'd miss it.

Then I did watch the final quarter and the new England Patriots made an amazing comeback. They miraculously levelled the score 28-28. Then in overtime, they won the toss and got the first possession, ending the game from there by scoring the first touch down.

If the game was rigged, that coin toss would be rigged, no? Was there an independent third party inspecting the coin as it landed and calling heads or tails? There was only the ref and players there.

The part fans are claiming proves the game was rigged was when the Falcons were up by eight and in possession, someone on YouTube describes it like this....

It was obvious. The Falcons had the ball with a few minutes left, up by 8, and within field goal range. It would have been a chip shot from where they were. Instead of running the ball until fourth down, then kicking a field goal to go up by 11, they opted to pass, the QB ran backwards and got sacked for a huge loss. They were still in field goal range. It would have been a 53 yard field goal from there. They could have run the ball on 3rd down and hoped for maybe a 48 yard attempt on fourth. Instead, they opted to pass and they got a holding penalty, forcing them out of field goal range and forcing them to eventually punt. This is all the proof I need. The Falcons had the game in the bag and the play calling made it too obvious. It's like the person calling the plays wanted to lose the game. This happens all the time in the NFL. I don't know how nobody notices this.

American football fans, defend your sport or condemn it. The Falcons performed an incredible collapse. They even gave up the extra two points the Patriots needed. It could be just about the biggest collapse in professional sports final few minutes. Was it fixed?

I don't know, to me it looked like the All Blacks losing to France in the quarter-final of the 2007 Rugby World Cup. Instead of positioning for a winning drop kick, they went for the try and came up short. Not rigging, just stupidity in that case.