No two people are the same, but there are many paths to orgasm.
The problem is partners not caring / not communicating.
Add to that the US having some fucked up stigmas on sex and chastity in regards to women and it's a mess.
Now I love seeing people get off so if I'm with somebody I'm going to do my best to make sure we both have a good time.
I've had more than one girl that would stop me right before they had an earth shattering orgasm.
I've never been able to figure out if it was a control issue (like, either they don't want to lose control, or they don't want to give me control), or if it had to do with the "fucked up stigmas" that you refer to.
One of them was a long term girlfriend who I lived with and she would only let me take it to that level if she had a few drinks. It was weird. Like, she had no problem having sex with me or letting me go down on her but once she started approaching O it was over.
I had another girlfriend who enjoyed the physical aspect of me going down, but she has a bunch of "sub" tendencies and when I went down she said that she would view it as a "pussy move" (lol! puns!) and start becoming less attracted to me.
People are weird about sex stuff.