I didn't know he had ever said this but I'm not surprised.
Being an artist demands intimacy and it must be weird to see your artwork, which comes from your PERSONAL work, becoming loved by anyone. What you create is a part of yourself, it's pretty hard to share it with others, I think... I wouldn't like it either... What the artists originally intended to mean often disapears at some point...
That's why I will never blame any artist for not telling the whole truth. They already give so much of themselves to the crowds, I think It'd be horrible to dare asking for more. For his own balance, Mika has to keep some privacy.