In the 60's the belief was that they could not tolerate profanity. Or maybe it was that they'd tattle on the rest of us.
And even if not, I haven't heard anyone describe the coinage 'fupa' as offensive.
(Neglecting that there weren't many women in CS in the 1960s. I don't even see that the word-fragment would have been considered offensive in civilian context, esp. to non-US speakers of English)