While not a “review” in the traditional sense, I hope it would fall under the CRFA anyway.

https://www.ftc.gov/business-guidance/resources/consumer-review-fairness-act-what-businesses-need-know

The Consumer Review Fairness Act makes it illegal for companies to include standardized provisions that threaten or penalize people for posting honest reviews.

They can’t necessarily use a “contract” as a defense.