Sometimes it really does go away. My doctor (local GP, not the surgeon) explained that granulation tissue is a natural part of wound healing, and it's only when the healing process stops at that point instead of progressing to the last stage (where the granulation tissue gradually turns into normal healthy skin) that it's a problem. So "wait and see" makes sense if it's not clearly past that point yet, and probably lots of women are lucky enough to see the healing continue normally and the granulation tissue fade away.
I know I had some tiny spots, none of which hurt or stuck out, and within a couple weeks they'd finished healing into scars.