Dont know what went on behind the scenes, but imo Madrid ousted him because of his performance level and his injuries. All that golf jazz came later. The year after Cristiano left, Madrid planned with Bale as their main guy. But the main guy was injured half the time and underperformed when he played. Bale got chances all the time, but of course, if you dont even show a glimpse of potential, a bit of magic here and there, you wont get a series of games. And then he‘s out injured the next month anyway.
So they tried to move him. Next thing you know is the golf jazz coming in and his agent spouting nonsense all over the media. What are you going to do with a guy that earns a shitload, is injury-prone, at best performs like a mediocre squadplayer and disrespects the club in public?
Personally, I couldnt care less about the about the last thing. But for the first three things I‘d oust him every day a week. Also considering that he is 30 y/o or something and subsequently has very limited room of improvement over time.