Lightroom make a picture softer

Hey there,
I hope you will understand my problem. a collegue of mine has an edit which is very soft. I added an image. She showed me how she is doing it. For example in the black and white section she just push the orange tones to the right and the image gets softer. When I do this, the orange tones just gets brighter. And it is not about the lense, though I have the raw. Any idea?