I think he left because he saw this debacle coming. A lot of people seem to forget that this team has been shit since last season, especially in the league, the only difference is that Ronaldo always showed up at the right time to save day and score decisive goals but you could still see that the overall performance of the team was starting to decline.

I think the team needs a lot of chances, starting from the president, Florentino Perez, he needs to go, along with some players that are obviously past their prime like Marcelo or Benzema.