But I'm not as optimistic as other people, Barcelona is still very unstable considering the many young players in it. If Lamine Yamal, Pedri and several other players are missing for any reason, then their performance will suffer. You can see how Barcelona performed against Osasuna, it was so bad and had difficulty keeping up with their opponent's game. Imagine if some of these main players were injured, I'm sure Barcelona would very easily lose points.
Saying their performance is very bad just because based on the match against Osasuna alone I don't think it would be reasonable because after all, looking at the current conditions especially in today's match even they returned to good form and did not make the same mistakes as they did last week.
Some unexpected conditions including defeat in a match actually it is a natural thing because after all even though they are a big club but unexpected defeats like against Osasuna can still very much happen but that does not mean they can immediately be labeled as a decline because when this is a concern and can change the performance in other weeks then I don't think it will be a makesense.
Now Barcelona are still quite formidable and we have to admit that, although it is annoying especially since I am a Madrid fan but we also can't ignore the fact that for the start of this season Barcelona are still too difficult to beat so it takes extra effort to topple this club from the top of the table.