Yay, pullups!
I wonder what experience her mom had growing up to make her so apprehensive to diapers for bedwetting. Diapers were always used as a threat to me when I was around Maddy's age to try and get me to stop bedwetting and my dad even bought goodnites. Luckily, at that age i would only wet the bed in spurts and the goodnites were usually returned, then my dad would do it again a month or two later when my wetting returned. So I could see if her mom had similar humiliating experiences, she would be against diapers.
Your story wouldn't necessarily hold up, mostly because of how skilled the doctor is. Like, "teaches other doctors how to do procedures as a leader" kind of skilled. And there might be other options, but from what I've found, they're harder to get done - and harder to make sure you have a support structure in place to make sure you're alright as you do it.
I signed up myself for a revision - while my procedure definitely had an effect, it'd be nice to see even more of an effect, and the doctor and their support staff are willing to support it without paying again. That's the difference, I've found.
(In fact, I think @Reddy and I have our revisions scheduled for the same date - this will be interesting.