This is really kind of an oddity in medical ethics terms, or maybe a change in focus?
Because the idea that adults can consent to anything, and doctors should just do it, has never been how doctors are supposed to operate.
Doctors generally are supposed to offer best practice kinds of options, and not offer procedures that are ultimately harmful or not about improving or maintaining health.
Even many generally accepted kinds of cosmetic surgery were once considered pretty questionable for this reason, it has no medical benefit and carries real risk. Years ago, people justified it on the basis that it would improve mental health, but that was never a slam dunk argument, or even a very strong one, from a medical ethics perspective.
The whole, "if people consent it is ok" thing is just dodgy all around and is part of why we are where we are.