OCD isn't that simple and straightforward - having rituals doesn't mean that you have a psychiatric condition, it means you're a bit superstitious or have got into habits. It only can be termed OCD if the rituals are very severe, dangerous or are seriously detrimental to someone's ability to lead a normal life.
I read that some of his routines were the idea of Toni to slow Rafa down and to help him concentrate as he can be a bit hyper and lost his concentration easily when he was younger. Just what I read - might not be true. I'm guessing the butt-picking was all Rafa's work though!
True, but it doesn't have to be seriously detrimental to your life. There are lesser degrees of OCD, though I doubt Rafa has it