Your point? (I’d call it more erotica than porn but that’s irrelevant.) If your culture sexualizes nudity per se that’s not my problem and if nudity offends you well that’s your problem. She consented to this, was an adult at the time, got paid for it and moved on (and, for most of her life, couldn’t care less).
The model has indicated she doesn’t want it used for this
It’s a pretty valid reason to me and it would be nice if people respected that. Do note that Playboy has the rights of the photo though, not her, but chose to let it slide 'cos… free publicity.
there isn’t any other possible standard besides this exact photo
I never said that. It’s an old photo, along with all the other photos of the time it should’ve been retired ages ago, on technical grounds.
But these are not the reasons the IEEE is banning the photo, now are they?