Problem is that we aren't always playing against teams that are 50% weaker. If you play against 75% and you are 100%, you stats jump. At this point, the lack of consistency is frustrating. You can be favorites for a match (+20%) yet still lose by a large margin.
A game where you go into the match saying: "well, does the engine favor me today or will I just lose because it said so" is pretty much a game of randomness. This disenfranchises the player
To answer your earlier question, yes, I won level 2 Champions League. I lost my first cup on lvl one because I was already knocked out when I took control of the team. In fact, the team lost 7 games before I took control of the team. However, to argue my point, since the game is quite random, the trophies have just as much to do with luck as management. I know how you feel. I lost one final 2-1 against a team that was 89 (I was 121%).