Its planned, to an extent. They can't do realism very easily and need to use chance to make the unexpected happen. Unfortunately embedding a chance that's big enough to allow the minnow to beat the bigger fish means it can go crazy when the 'chance' delivers extremes. So those one-off results can be more frequent in the game.

Commentary is the best guide we have for whats going on but its not a good guide unless we knew what priorities were given to comment/event selection. Its just a snapshot, even worse than TV highlights because the selection is programmed for a all the fixtures whereas TV highlights are selected for that game.

PS. Unless your team is all 9* we're not talking about Man Utd or Championship - that is unrealistic. Most teams in this game would be non-league And some are Boy Scouts.