At this stage, it all depends on Atletico Madrid. They need to consistently play the remaining matches and not lose the game to Barcelona. In addition, there is a chance that Barcelona will not be able to beat Real Madrid. It would be better for Atletico Madrid to have Barcelona and Real Madrid draw.
I strongly doubt Atletico Madrid will be consistent for the remainder of the season, they've still got tough fixtures ahead including one against Barcelona, However, be eliminated from all other competitions might help the concentrate and prepare better.
It will not be difficult for Atletico in the future, in my opinion, only Barcelona is the toughest opponent in the remaining matches at the end of this season, if Atletico are able to go through all the matches then it can be said that it is perfect at the end of the season by bringing the title, well it would be very beneficial if El Real and Barca draw while Atletico can go on with the 3 points.
Indeed, there is only a little doubt because the points are not too far apart so I think that concentration in the main league is also important for Real Madrid.