I don't completely agree with your analysis, regarding Madrid not chasing big wins. for me, it is not surprising that Don Carlo's squad only got a narrow victory. if we look closely, Don Carlo doesn't change his strategy much in every game. however, the fact is that they are still able to continue winning after victory from every match regardless of the draw against Osasuna.
Therefore, I believe these two rivals will continue to compete closely on the La Liga standings. however, as you said.
The El Classico match became a differentiating match to have a gap in terms of the difference in points, which is for sure whoever wins later in that hot match. would have quite an advantageous distance, for one of them.
It's not that Carlo Ancelotti doesn't change his strategy much, but indeed he only plays with that strategy, he only takes advantage of the advantages that the players in his current squad have. So far it has not been a big problem because his co-stars have not been able to stop the strategy he has implemented. But this must be watched out for because it could be a time bomb for Real Madrid. I think sooner or later their opponents will surely find a powerful strategy to stop the game that Real Madrid has shown so far. One more thing, if they met a stalemate then the result would be like the match against Osasuna yesterday.
It seems like the standing will remain the same as before. The only thing that makes it different is barcelona will be using all of its power to win against celta vigo. i meant xavi have been mentioning it. it seems like barcelona will be using celta vigo as a training before it will be facing intermilan in the next match. Barcelona needs to prepare everything before it will be against intermilan. Intermilan may able to beat barcelona anytime if barcelona didn't prepare so well. A very difficult match for barcelona.
While the La Liga match against Celta Vigo will be important because it will affect their position in the table, their match against Inter Milan is also very important because maybe it will determine whether they are more likely to qualify from the group stage or not. Because if they lose again in that match it will be difficult for them to be able to continue to move in the Champions League. They are currently 3 points adrift of Inter Milan and 6 points off leaders Bayern Munich. Xavi's tough task because he had to be faced with a tough situation like this.