Losing a few crucial points is taking Atletico further away from the current championship chase, especially if Barcelona can win the postponed match against Osasuna later, but even so we don't have to completely rule out Atletico from the current championship path, because after all everything can still happen considering the competition still has 10 matches left.
I thought when they were knocked out of the champions league they would pick themselves up and focus fully on la liga, but failing to hold on to the win when against barcelona clearly shows that they lost motivation in that game.
Atletico Madrid have missed many opportunities at the same time, being eliminated from the CL competition and losing many points in La Liga matches and so I think the mentality and confidence of Atletico Madrid players has decreased drastically because of that and makes it difficult for them to compete again.
Now Barcelona and Real Madrid will compete for the La Liga title, not to put Atletico Madrid aside but realistically at this time, at the end of the season Atletico Madrid's performance has actually slumped and there is no guarantee that they will recover after a series of bad results like they have now.