The points are still very close, and as long as the points gap can change their position in just one match, then it will remain a tight competition until the end of the season. However, apart from the advantage of still having a postponed match, Barcelona is also lucky because they have better goal productivity than Real Madrid, so that is capital for them if in the end they have to have the same points and they have to compete who is more productive in creating goals. Honestly, so far I still can't say anything, only that Barcelona is definitely one step ahead of Real Madrid.
For me it's almost like it's over for the two Madrid teams this season on winning the league. Atletico Madrid is 4 points behind Barcelona Currently and both Real Madrid and Barcelona are on the same points but Barca is ahead based on head to head difference and might actually make it 3 points difference after they win their outstanding game Vs Osasuna next week. Yes, they are in form that's why they are actually the favourites to beat any team that comes in their way now. Even Real Madrid isn't safe in the return leg of the league match because Barcelona is still the favourite to win again in that tie.