Yes, Granada is one of the weakest clubs in La Liga, but even teams like Real Madrid or Barcelona have difficulties. Barcelona drew this match and it's probably not a big deal for them. The main thing is that they did not lose three points and earned at least one point. Barcelona have not lost a single game this season and this is a good result.
I was amazed by Granada's performance for scoring at early minute of the game and maintain the lead till late minutes. It's just unfortunate they were not able to maintain and hold Barcelona back till final whistle. It's was a good result for Granada considering the fact that they have average players and are not in any way close to Barcelona but I will not agree that it was a good result for Barcelona. It's understandable that football is full of surprises and seeing small clubs trashing big teams now has become normal but nevertheless, it shows how weak and relax Barcelona has become in the recent game week. Draw spoils record more than losing in the table and before you realize what is happening, you're already in the mid table when you draw a lot of matches.
Obviously, the draw result against Granada was a bad result for Barcelona. How not, Granada is just a team that is in the relegation zone but the truth is, even though Barcelona controlled the match but it still made it difficult for Barcelona to beat Granada . So yes, this draw result is definitely a bad result for Barcelona, I don't care about Barcelona being unbeaten so far. Because anyway, playing against a team that is in the relegation zone should be for Barcelona to get three points but Barcelona failed.
Also, Granada can scored. This is clear that Barcelona defense in that match quite weaks, as a big team and perhaps the favorite club in La Liga, Barcelona at least didn't concede in that match. Against a team in the relegation zone, this is clearly a very bad result, not because about of the draw result in my opinion but because of the two goal conceded which makes Barcelona look bad. Xavi must focus and continue to learn more so that Barcelona defense is not easily be penetrated by their opponent.