If you're arguing about the validity of using them or possibly even referencing them I can agree. Dissonance explained better about the correlation if you were to take the analysis to that extent. I honestly think, though, that I've worked on them moderately enough to the point where I don't feel extremely awkward using them. Does it define me at all, no, but you will see subtle undertones.
On the other end if you were to type based solely on those last two functions I think it would be somewhat disingenuous because they really don't give you an accurate portrayal of who a person is. At the same time depending on who you are you may have different functions in that slot that serve to color your personality