No, this is football. I want to remind you that last year Atletico Madrid, a 4* team, won the league against Real and Barcelona , 6* teams.I know this is just a game. But as you said, it's a football simulation game. This is not a simulation: it's a joke!
May I remind you that this game is not free. We are entitled to ask for realistic results if not completely scientific ones.
This situation may happen once in 1000 games. Not every time please !
And in 2004, the national team of my country, Greece, a 3* team, won the European Cup against 5* and 6* teams.
Did my team or Atletico won with an injured GK ? No, that's the fail of the game, the presentation (the visualization of a game) not the result. Football is the king of trolls.