Maybe, but that need to be compared to a parallel world were no reviewer receive gift and script/bullet point feature to talk about (if you are not enforcing them, they become was less efficient....), maybe that practice affect NVidia bottom line in a positive way overall (they are probably calculating that it does).This will affect NVIDIA's bottom line.
Look at Apple, how long is there banned youtuber list ? How tight is there press control (and store reseller employees rules, etc...) ? How good is that bottom line ?