Unnecessary reactions. He made a bad pass and slipped on another.....those can never be the main reasons the team dropped the ball......
The drop in control and pressing after the substitutions was the main culprit. Bringing Gavi, Fermin and Garcia was a massive drop in contribution.
Contrary to many here, I had always felt Kounde wss a more vulnerable and an unstable full back unlike the completely blind focus on Balde( who gets criticised week in week out even as he has more than exceeded expectations for the dual roles he plays on the left side). But on this occasion, he was ok. Team failed collectively.
There were many misplaced passes, failed attempts to dribble, failed trivela attempts, etc, by many players in the match, it was just unfortunate that his led to a goal. Again, he slipped but everyone conveniently forgot that the central defenders lost their men too just like Pedri was ball ball watching for the first goal conceded.
I think people are just looking for a scape goat. He was good.