I think Atletico Madrid has no chance to compete for the title anymore. Only Real Madrid can compete for the title, but they must beat Barcelona in the next El Clasico and win all the remaining matches. So, we only have 2 teams that join the race for the title.
Barcelona has performed consistently again. If you remembered they ever played inconsistently during this season. That's why Real Madrid could overtake them in the 1st place few months ago. Luckily, Barcelona has found out their winning mentality anymore. Hansi Flick is successful to improve the players' mentality and set better game styles.
You are right because currently Atletico Madrid is a little bit further behind to catch Barcelona in first place so it will be difficult for them. Real Madrid still has a chance but they have to be able to be consistent in the remaining matches and have to beat Barcelona in El Clasico. In terms of chances, maybe only Real Madrid has hope to compete for the title and that also depends on how they perform in the remaining matches.
Barcelona did experience some less than satisfactory results at that time so that Real Madrid managed to replace Barcelona in first place, but after several less than satisfactory results were obtained by Real Madrid, Barcelona returned to the lead.