It doesn't end completely before the season is really over until then Atletico still has a chance to fight for the La Liga title, we also have to consider the tight schedule and also the performance of Barcelona and Real Madrid as their toughest competitors, in the remaining matches I am quite sure that these two teams will not win all the remaining matches, well in conditions like that Atletico can take advantage of it to steal the title with the note that Simeone and his troops rise and are motivated to fight for it like in the 20/21 season.
Barcelona are strong and return to their beast mode recent weeks but they are far than an unbeaten team like with a golden era years ago. Hope still exists for Atletico Madrid and if Barcelona suddenly lose one or two matches, the title race will have very big changes from both Real Madrid and Atletico Madrid.
Meanwhile, Atletico Madrid after a direct defeat by Barcelona, have no other ways than trying to play as best as possible and get as most points as possible in coming matches. They only have to concentrate on La Liga matches and wait for lack of focus of Barcelona by playing in Champions League. Chance only can come if they try and play well by themselves first, and Barcelona will have risk of losing points in coming weeks. When season comes to the end, in very last weeks and matches, players might be tired, exhausted and it can be start of a free fall and it's hope of Atletico Madrid to catch Barcelona.
Yes, I also think that if Barcelona make some mistakes, both clubs from Madrid will be able to take advantage of it... Besides, Atletico Madrid only have matches left in La Liga, not counting the cup, where they will meet Barcelona again... Real Madrid and Barcelona still remain in the UCL, making their schedules more difficult than Atletico's... The gap in the standings isn't very big, so the chances aren't lost for anyone yet...