You're right as far as the post I replied to is talking about mortal health risk to mother or child, which doesn't seem to be a huge issue at 35. I was also thinking about the risk of not being able to have kids at all, or having less serious issues like Downs which is pushing 1% of live births before age 40 (https://www.aafp.org/afp/2000/0815/p825.html).