The best teams tend to float to the top over the course of a season, and the best teams are more likely to win, but the excitement would be lessened if the result became more predictable. If I play Kasparov at chess I'll lose and the game will be completely uninteresting, but if I play backgammon against the world's best there is a chance I'll win. That creates more interest.
I agree that howlers such as the "ghost goal" from England, and the offside goal for Argentina are blots and shouldn't happen, and I don't argue that technology should remain prohibited, but I do think that meddling with the rules to try to make the game less "chancey" are mis-guided.