True but they basically cut how many people could stay in Barcellona, not how many people could go to Barcellona.
So what will happen, in my opinion, is that people will continue to go to Barcellona, staying in the surroundings to sleep.
So both of the problems they want to solve will be not solved: they will continue to have over-tourism and the houses will not go on the market so the prices will not lower.