Providers/Prostitutes/Hookers/Whores (<=Pick the one that suits you) should run their ads and not their mouths. The only response to a bad review a hooker should make is a Public Offer to make things right. No other comment will help them.
None of the pussy whipped WKs here arguing with those that say she was in the wrong are going to go spend a dime on her and anything less than taking responsibility for her business has zero positive effect on it for her. Zero.
On the other hand....... Simply responding draws additional attention to the problem. Becoming the center of some drama turns some potential clients off.
The review, wrote by a long time member, was not a personal attack in any way and will have some negative impact on her business.
How much impact is mitigated by the overall reputation of the hooker.