I do not dispute the fact that Real Madrid can actually lose against Dortmund and indeed luck has a place in football, we have seen so many types were a team literally dominate a match but in the fail to score while the opponent with just one opportunity they seal the game.
Though the chances of this happening to Real Madrid now is smaller than any other team to me now simply because if we observe this season we will notice that no player in the entire Real Madrid squad can be underestimated when it seems no hope again a player steps up as tge game changer and that's how they even made it to the final.
Real have shown more than once throughout the season that they can win back, that is, they know how to get out of the most difficult situations, so I am inclined to believe that Real will win the Champions League final again. They've played in the Champions League final 17 times and won 14 of those matches, so you know how often they lose when it comes to the final. I told City or Real, whoever wins will most likely be the champion.