If you romance Panam or Judy you get a whole storyline that is deeply connected with the main quest line and you get a meaningful ending with them. They stuck us with River who didn't even have anything to do with the main storyline, I'm assuming just to say they did something.
And you consider that to be enough to make such grand and general statement?
Just so you know, she thoroughly enjoyed every romance available for different reasons and those were hardly her preferred parts of the game.
It's quite a leap you're making applying your personal opinion to every man and woman out there. Might want to dial that down.