I'm all for noisy sex. What I'm against is performative screaming. I promise you, this ex is terrible in bed. She is not screaming from pleasure. And as you've said here, even those who make loud noises still manage to not traumatize their children with it - whether scheduling when kids are not home or being more quiet when the situation necessitates.
I know when my kids are not home, I feel much more inclined to lose myself in the love making and I don't really know how loud I am in those moments - but if there are other people in the home, you can bet I know how to show restraint.