It's like saying to somebody who's about to punch you.. "Ok, you can punch me if that's what you want, if that makes you feel better", and if you say it right you make it almost impossible for that person to punch you.
You don't want to get into a fist fight with somebody who's unwilling to raise his arms, and you don't want to negotiate with somebody who surrenders all leverage.
I'm confident she'll get an offer that the employer genuinely believes is fair.