One of the maxims of Brian Eno is "Go to an extreme and retreat to a more useful position." Creativity, innovation and experimentation can be very interesting and fun, but can lead to extremes that are ultimately unusable.
When I engage in free-form creativity, just about anything is possible, but the real question is why, and for what purpose. Many times the purpose is to take a problem and creatively resolve it into a final product. That in itself can be satisfying, but remains unresolved in the larger picture. That's the bigger problem. If what you're doing fits in preexisting categories and series, it is easier to simply work without resolving the whys. Or the why is simply to attempt to get into a flow state, and to meditate in the doing of the work, as opposed to innovating it and not applying it.