I had a prior employer who got some of those well deserved negative reviews, from employees. Google swears they can’t pay to take them down, but the ToS is so slanted towards their customer (the business paying AdSense fees) it’s exactly that just with more steps.

Once they nuked the bad reviews, a manager came around for a ‘friendly chat’ with individuals about how great it’d be for them to use their personal login and write leave a review - wink wink.