In my opinion, Barcelona, along with Liverpool, the most in-form team in Europe right now. Therefore, their loss to Real Sociedad last night was a big surprise for me. Barcelona is still leading La Liga, but if Real Madrid wins, they’ll close the gap to 3 points. I believe that if Lewandowski's disallowed goal early in the match had counted, Barcelona would have won.
I'm sure no, Barcelona should not have won. After all, to win starting from a score of 0-1 you need to score 2 goals and if the first goal was not counted, then where is the second one so that the score would at least be 1-1? Or do you think that a draw would be so disgusting for Sociedad that they would attack with the whole team, leaving space for Barcelona? I doubt it.
Barcelona's loss of points was super expected - it's impossible to maintain 90%+ of points for a long time (especially if you're the "surprise" of the season, and not a seasoned dominator).