The worst part of Pjanic there was throwing arms up and making no real attempt to get back even if ended up in goal he wasnt to know that at time and should be trying to get back quicker.
That too. But the pass in the first place is one of the things to be avoided. Short pass with pressure on to a defender already in retreat. So, for me, even these individual errors, they are "encouraged" and "helped" by collective problems. Of positioning, and shape.
Look on the press of Eibar, how there is ZERO options for a pass between the lines in all the sectors around Pjanic. The shape is terrible. Too many players waiting for the ball upfield, and almost no one looking to receive between the lines.
It's true, both Pjanic and Araujo are expected to complete a pass to Mingueza there, but more options should be on the table than just one pass. That's the way the best teams play. At a top European team, no way that huge space in front of Pjanic is empty and filled only with 5-6 Eibar players without a single Barca player making a move to claim it and run the play through it. That's a key area for any progression.
We need a manager to coach the usage of space and off the ball movement. Players should always appear between the lines for a pass in key central areas. That's how you unlock these teams.