And when it comes to prerecorded vocals, it doesn't matter much once you're past a certain venue size. Hardcore fans notice everything but 95% of the audience isn't paying attention to it when you have a large space unless it's sloppy (ie Mariah). We have to learn to spare our own preferences versus what's best/ what the average person pays attention to.
Another example is her dancing theatrics. I would personally prefer for some of her moves to be less dramatic but the majority goes up for Tyler Perry-like drama on stage.