I might have read that as well, but it doesn't make any sense to me. A sense of pure personal authenticity negates any reason for comparison which is necessary in order to envy someone. I would expect that trait with an externally aggressive type like 7 or 8.
The descriptions of 4's can emphasize personal sensitivity, which I have, but I don't indulge it. It embarrasses me to claim and defend my own sensitivities. How do 4's feel about conflict?
Well, there are 4s with 3 or 5 wing, so maybe that answers part of it. A 3 wing would give a 4 more of a nose for externally (perhaps universally) valuable assets, thus creating a strong sense of dissonance between who they feel they are, and what they value, versus external forces.
Rather than tackle it from a perspective of conflict, maybe the choice of words better suited for this would be drama. And I don't necessarily mean drama in the most plebian sense of the word. There might be a desire to stir things up within themselves, or in others as a way of having it reflected back to them. I know 4s are known for this wide range of emotional endurance and exploration, but I think deep down, it can be fabricated and false and inauthentic. I think this is a way for them, like any other person, to deal with the inherent nothingness because that's scary. So they indulge, even in the negative, masochistically.
Also, I'm not sure what you mean by personal sensitivity.