It wasn't entirely Lewandowski's fault, but if you look at the attacking lines of the last 15 years, then they are now not even close in quality to what they were used to at Barcelona. I understand the frustration when they are still longing for two strikers like Suarez and Messi, The attacking line Barcelona now has is much weaker. But it is not only the attacking line, it is the midfield and the defense that are both not as strong anymore.
Real Madrid made a lot of right decisions. Barcelona has some great talents, but they don't have players that are so decisive like Vinicius Junior or Bellingham. I also think that Real Madrid's defensive players are stronger in aggregate than Barcelona's defensive players.
Barcelona's performance against Real Madrid in the final match looked very poor. If we consider the performance of the final match, it is certain that Barcelona to Real Madrid have done well in every position. Barcelona ended the first half with a three-goal lead, but even in the second half, Barcelona could not turn around against Real Madrid. Barcelona looked very frustrated throughout the match and seemed to be giving up helpless against Real Madrid. When Real Madrid confirmed the first final, like everyone, I also expected Real Madrid's opponent to be Barcelona, because the match between Barcelona and Real Madrid means extreme excitement, but Barcelona fulfilled the expectations of going to the final, but could not perform as expected against Real Madrid.
I am confused. What game are you talking about? Barcelona didn't have a three-goal lead in any of the recent matches against Real Madrid. At least I can't recall such a game. Real Madrid didn't have a three-goal lead either as Lewandowski scored a girl during the first half. Are you sure we are talking about the same event here?
Barcelona is still in love with their ball possession game, but since they don't have the same team as they had when the tikitaka was born, the ball possession doesn't result in goals for them. That's what they finally have to realize now and adjust their game accordingly.