It's not yet over until it's over. The season hasn't come to an end that we only have one or two matches to play that will make me accept with you that Barcelona has already won the title. Real Madeid is still open to winning the title because we can't tell if Barcelona will be able to stay on the first position till the end of this season.
Real Madrid won't let Barcelona go, they will chase them until the very end, there was already a situation when Barcelona was significantly ahead of Real but then they lost it very quickly and even allowed Real to be above them. So everything is still ahead, and maybe Real Madrid have easier opponents than Barcelona, although there are some difficult matches that can affect their position. I hope that Flick can make Barcelona champions, they deserve it.