Since I did a significant amount of my training in the Philadelphia area (where there was (at least at the time) a very strong Tracy influence, I have seen a fair number of Tracy practitioners and I started that way myself (30 techniques per belt till I switched a blue belt level). I personally did not see this but that was more than a decade ago and the philosophy may have changed. I've seen Tracy practitioners who could not do much else but spar. It all depends on the individual and the instructor.