...
Even though Real Madrid's squad is stronger than Atletico Madrid's, I don't see any chance to say that Atletico Madrid don't have the ability to score points in this match. Atletico Madrid's squad is very strong. However, since the performance of the attacking players is somewhat erratic, this team cannot maintain the winning streak. But Atletico Madrid's defense is very strong. Atletico Madrid conceded only 3 goals in 7 matches. So it will be difficult for Real Madrid players to break down Atletico's defence.
Barcelona will benefit the most if this match is a draw. It will not be difficult for Barcelona to win against Osasuna. So if the match between Real Madrid and Atlético is a draw, Barcelona will be 6 points ahead of Real Madrid, and Barcelona will be 8 points ahead of Atletico Madrid.
Absolutely true. It is not as if I believe Atletico will far superior, but if they can put their best food forward in that game, then of course they can beat Real Madrid and I doubt that it is of any help that Mbappe is injured...

Atletico winning it would be good for Barcelona too, as I think that given there are so many games to go, Real Madrid is probably the stronger competition. They are still not able to play their best and time probably plays in their favor. Mbappe hasn't shown much yet.
But frankly, I never thought that Barcelona would be leading the league like this. Their goal difference is incredible and they now face Osasuna, then Alaves, then Sevilla. They most likely win those games and then they face Real Madrid. If they don't mess up, they will have a lot less pressure than Real Madrid.