It is true that important players of Real Madrid are injured, but it is also true that all these players are trying hard to come back from injuries. Since the players are trying to come back, when they are fully fit and when they join the Real Madrid camp, Real Madrid will become a strong team again, especially in defense.
And at the moment you can say that there is a great defense, they have new players, and a great start with more explosive players, I think that defense is no longer a problem for Madrid, now they have to concentrate on winning from the beginning in order to be the dominant team in the League, this will be interesting, because Xabi is a man who does away with any type of egos within a squad and makes all the players play together.
That is right that even though they had ball much they did not create many good chances to score. This is real concern especially for team with high hopes. We know they won but they need to fix their attack. As you mentioned team that wants to win trophies can not just rely on great individual plays. They must have ability to break through defenses. Creating better chances will be good for them as season goes on.
The truth is that for me Madrid played well, but they lack players who break lines and dare to dribble like Mbappé ,I could have a trident like Mbappé, Gonzalo and Mastantuono, and make the forward, just as they drop back to defend, because they have to earn their place, Militao seems excellent to me, like a more offensive Madrid, but they lack more explosiveness, I liked Carreras' game.