I love both giving and receiving oral. Sadly DH has been unable to do either for the last 15 years.
When it came to him receiving, he would just lose his erection almost immediately. It wasn't anything wrong I was doing (I give a good BJ), it was psychological, a performance anxiety issue. After a few fails like that, he was terrified of me going there so I gave up trying.
When it came to him giving, he used to do it every now and then, early on in our relationship, but always reluctantly. He is super-sensitive to smells, on an almost pathological level. I have always suspected he has ASD (like one of our daughters) and even the slightest body odour can be totally overwhelming to him, which of course always made sex in general tricky, but oral in particular. Forget spontaneity, sex had to be planned so that I could shower beforehand and make sure I was fresh everywhere. Even then, a vagina is a vagina at the end of the day, it's never going to be totally neutral. There was an occasion when I asked him to go down, he tried and was simply unable to stay there. After that "trauma" he stopped trying and I stopped asking.
You're right, I think a pussy should be worshipped (taste and smell included, within reason) and I missed oral terribly for most of my married life. I'm now making up for it with my fwb who loves both giving and receiving. We have long oral sessions and there's definitely a sense of approaching something very precious when we both head south.