See, to me, that seems strange. You can't evaluate an artist on the basis of only one particular, obviously stylized portion of his/her output. If it's well-known that that artist has produced works done in a completely different style that the works one is most familiar with, it seems obvious to me that those other works need to be brought into consideration. Only judging RTD on Who works makes about as much sense to me as only judging Stephen King on his Dark Tower novels, or only judging the Beatles on the musical Across the Universe.
I'm sure that people who are only Dark Towers fans and not really King fans in general would disagree.