It'll be interesting to see how Amazon respond to the inevitable complaints when Clarkson does a "Clarkson". The BBC used to fall over themselves to apologise and give him another final warning - you'd have to assume this was discussed by both parties. Personally I hope Amazon just stay out of their way and let them get on with it.
Both incidents the BBC have him for he was coerced into situations (singing a song he didn't want to sing because he only knew the racist version from when he grew up and didn't want to say the word, then being kept up for 24 hours, and made to drink profusely as part of a show stunt) he wasn't comfortable with. They were looking for reasons to cancel such a popular show because it had such a disparate budget from the rest of their shows and that was upsetting parties within the BBC.