La Liga is only over when its mathematically impossible to catch Madrid.
This!
Only impossible is actually impossible!
I bet every person that now says LaLiga is "over" and "lost" will be like "oh we sure do have a chance of jumping back into the game!" if we get 3 points of our next week's match, and Madrid don't.
As I've said so many times, 54 points are a lot! Madrid are doing well, true, but this doesn't mean that they are certainly going to win every single game from now on. Yes, they do have a higher chance, but saying that LaLiga is "over" isn't a great way of describing the situation we're in.
This is soccer (football?) and everything is possible.