That makes sense. I haven't read the whole post, and likely never will, so having some context is helpful.
Also, I thought more about the quote itself, and I think I made a little more sense out of it, at least in my mind. I think he's saying that he's not "just" the drummer from Dream Theater, but a drummer with many different styles and influences, and by allowing himself to indulge in these other musical styles and influences keeps those other parts of him fresh, and some of that will show in his work with Dream Theater. He can be a more complete contributor because he has more to contribute. But it is only in his solo work that he can really explore and develop that, and not everybody will necessarily like all of it. Something like that. So yeah, a lot like what pg1067 is saying.