I think it really depends on how your section went, tbh. I'm really angry over the care I received when I was pregnant, but the section itself, not particularly. At the time they made the decision to cut, it was the only choice. The things that could have stopped it would have had to have been done days before. (If they'd caught it earlier they could have induced me, but it was too late for that.) If you were really sick (I found out later that I was, and that I should never have been allowed to just walk out of my 36wk appointment with a cheery "see you at 40 weeks") then you have a kind of peace with a section that a mama with an unnecessary or iffy section never has. I had preeclampsia. The docs couldn't have prevented it and the only way to stop it was to deliver the baby. So I just don't have that kind of blame or anger to recover from. I did, but getting my hospital records and talking about it with my doctor changed that. Once I knew it was truly necessary, and that the faceless, nameless consultant OB who decided to cut me was right... I couldn't have the same anger. Knowing meant a lot.
So, although my section sucked most hugely and I do not want to repeat it, I don't think I can have that kind of healing experience from the birth itself, because that wasn't so traumatic for me. I could very peacefully have a repeat, if I knew it were truly necessary, that my care had been right.
Now, I haven't VBAC'ed yet so perhaps the act of birth will be transformative, but I don't think so (I know myself). I think that having an entirely different pregnancy experience (and birth/hospital experience) will be a huge thing for me, but not so much the vaginal/CS thing.
I am NOT suggesting that VBAC isn't huge for a lot of mamas or that other women should feel the way I do. Just that if you've come to terms with your section, and have that certainty/rightness/peace, VBAC has a different significance.