The actual match was worth watching even though Lewandowski scored but it didn't make any difference. But other than that, this still doesn't interfere with Barcelona's good results this season.
if they play like there is no motivation to win and don't try to win the match, It doesn't care about the final result even friendly match IMO is just as important. Barcelona have to win the game no matter what it's very important to keep the mentality.
But whatever it was, there were two good things even though Bracelona lost, firstly helping Real Sociedad qualify for the UCL zone, secondly helping Lewandowski get El Pichichi. Do your best until UCL, Sociedad! And congrats on the Laliga Title for Barcelona.