My experience is completely opposite, both from the day school and boarding school. The CC are pitching that there are a lot of great schools kids can be happy at, and there is life outside of Ivy league. The kids and families are far more likely to be concerned with the prestige and USNWR rankings. Yes the CC office is judged by college list, but also by satisfaction of the graduating families. And they are well aware that they can’t place everyone at the Ivies.
Also not talked about here at all, but IME the largest component of the final college selection is often the financial package offered by the different schools. Not sure if anyone considers it ‘fit’ on here but the majority of families that cannot afford to write check for the sticker price very much care how much financial aid is offered to them, and whether it comes from grants or loans. So ‘perfect fit’ school is not perfect if it saddles you with huge loans upon graduation, and another school can jump to the top of the list if they offer significant merit aid which will allow you to graduate completely debt-free. And while there are online calculators, you really don’t know what the actually package will look like till you receive it.