The only way Barcelona can win the league title this season is when they play against Real Madrid in El Clasico and defeat Real Madrid, We should remember last season when Barcelona was at the top of the league table and after the El Clasico Real Madrid took the lead in the table, Real Madrid started playing last season with ending matches draw but after they play against Barcelona they win the match and top the league, Barcelona winning 7-0 is not something that will make us think that they can win the league title this season, Real Madrid never lose any match they play and I can't judge them or predict who is going to win the league.
We can't and should not speak so confidently about who is going to win the La Liga right after like 3-4 game weeks, hell, even 7-8 game weeks. That's more than stupid. I say that because early season games can be more deceiving than it seems because they cannot be the benchmark for how the season goes. Just because Barca won 7-0 in a game does not mean people can back them to be La Liga winners already, but also just because Madrid has a great squad which is certainly underperforming will be the main threat to Barca, or they are the only "good team" in La Liga. We have to credit the likes of ATM, Bilbao, and so many other good clubs.
Saying that winning the El Clasico is the only way to win La Liga is a wrong thing to do because at the end of the day, those are just two games out of so many. Yes, they can play a major role, but those are not the only games to win. To win a league, teams need to stay really consistent and needs to go through tough hurdles. Bigger teams also play in Europe, so things are really difficult for them to stay consistent throughout the season.
We all know that Barcelona players are very talented and they can play against Real Madrid but defeating Real Madrid is not going to be easy for them, Real Madrid players are very strong and whenever Real Madrid plays against Barcelona, Barcelona players usually get injured, Even if Barcelona have Dani Olmo Real Madrid will still beat Barcelona because even when Dani Olmo is in Leipzig Real Madrid used to beat Leipzig so I don't think we should think that Barcelona can win the league.
How Barcelona started the season is really impressive, and what Hansi Flick is doing with such young players has to be credited highly, and if things go right, they might surprise everyone at the end of the season. On the other hand, Mbappe just got his scoring boots on, which can make all of Madrid go further and further from here onwards.