Corporations aren't single entities. They also need internal deniability etc.
As a top executive, you don't want your orders all around the company to do something to the database and skip the regular systems. You want to simply create an environment where someone far lower feels the pressure to fake reviews "on their own", and then you don't notice it until public attention or legal proceedings find it. After that you simply kick out the low level people that were involved.
The fake reviews seem to have been going for at least 6 weeks, so that would have to be a very slow cadence for ban waves.





