I wasn't sure which muscles he was talking about, I got confused over all those names ;) but it was certainly higher fistula with higher risk of incontinence. But I'm doing ok with that :)
I always wondered about the pregnancy, given that even women with no previous issues down there develop fissures, hemmorhoids, abscesses during and after childbirth, but he waved it out, but he kind of had an attitude like: 'nothing should stop you and don't worry', rather than giving a medical advice. I've read in forums that women for that reason chose c-section.