My point is that it's each individual's responsibility to try and take Aikido beyond what Osensei ( or his students ) did. This is also Aikido evolving.
I would say that individuals have a choice. An individual, may choose to innovate and move beyond his instructor or choose to preserve the instructors form and way of teaching, acting as an archivist. This way, Aikido continues to evolve but the path of evolution is preserved.