Barcelona have been looking for Messi a lot on the field this year. When big stars fall, they create big gaps. They couldn't make up for Messi's absence. If they don't create a big star, they will lose the league to Real Madrid again. Real Madrid have the advantage of dominating the league more than ever. They seize this opportunity well. The Spanish league will be similar to the German league.
You could say the same thing about Real Madrid as you did about Barcelona... They lost Cristiano Ronaldo but didn't play worse and won La Liga again... Maybe it's the coach, not the missing star... Barcelona still have good players.... By the way Messi also didn't play very well at PSG this year it seemed to me...
real madrid has always been a team of stars, they have always managed to make a good selection of players, and that has always been rotating, that is: they hire stars, and after they win a cup they sell those stars and hire other stars again, they are not a club attached to some player for years and years. while barcelona was a team where they had stars of years and years, that cast of xavi, messi, iniesta, puyol and others was from a generation of years and they formed a great bond to the point that each player knew what the other was doing quickly which made it easier for them to play and win, but barcelona did not know how to manage the situation to the point of having new talents to replace the old talents, this ruined the team