I think it made a valid commentary about how silly the parent comment was.

You almost certainly just become completely desensitized to genitalia pretty quickly. There’s nothing innately terrible or scarring about human anatomy, the taboo is purely cultural. Some basic exposure and you get used to seeing them. Just becomes like seeing a foot or an arm.

I think that’s the point being made though a little more glibly.

That's your opinion, here's mine: I found it sort of funny, plus it actually raises an interesting point (definitely not useless, plus bonus points for such humor btw): I always wonder how gynaecologists, urologists, ... mentally deal with this exact aspect. For instance: what is sex in the evening like if you've seen x different genitals during the day? How easy is it to separate that? Or is there no separation perhaps?

I’m not GP, but I assume the point is that it’s part of the job. Coroners look at real dead people all day. EMTs see horrific injuries. Many jobs have unpleasant aspects, some horrible, but this isn’t novel or unique.