Didn't expect that indeed, Barcelona was playing at home against a mediocre team like Girona, but the result was only a draw with a score of 0-0. If the score is 0 for Girona, I think it's natural, because in that match Girona didn't have any shots on target at all, so when Girona couldn't score, that was a natural thing.
But yes, it's different with Barcelona who play their best squad like there is Lewandowski up front and also, Barcelona only focuses on La Liga. Then it is a result with a win that must be obtained and indeed, a result like this does not make Barcelona's position overtaken. But at least, Barcelona must maintain the honor of playing at home to keep getting full points.