Lamine Yamal's goal and Cubarsi's foul which resulted in a penalty are two debatable moments, so I don't feel Barcelona is guilty of wanting to do so considering that referees and VAR can sometimes still make mistakes that end up harming a team. But as I said before, usually nothing will change, especially until there is a rematch.
By the way voices are getting louder that Bellingham should win the next ballon dor. Still quite some time to go, but if he wins the Champions League title this year and the La Liga title for sure, I guess his chances could become quite good for the next world football player competition.
While no repeat of the match can be expected, that hasn't happened in history as far as I can remember. But at least the Spanish Football Federation will be more careful in choosing referees in the future which will make La Liga's reputation better. This time the loss befell Barcelona due to the referee's decision, so it is not impossible that Real Madrid will get it in the future in a different match.
I don't expect a repeat of the match, but what I hope is that La Liga can imitate the English League which seems more transparent about the referee's leadership in each match. There is always controversy in any domestic league, but it is always good to minimize it as much as they can.