How were these not overall real reviews? If they can't prove otherwise, this just entrenches the idea that big money is vastly more powerful than small voices. I honestly don't see how if this trend continues how things will end well. It's not just about Robinhood, etc, it's deplatforming, using AWS, etc as a weapon against smaller voices. I can't see this ending well.
Big money? What big money exactly? Do you really think Google care about RH and its money? They do it to prevent organized activities of rating manipulation. The RH case might be justified but Google cannot be the judge. If tomorrow the corner store across the street receives 100K reviews in 1 hour, Google would respond in a similar way.
Without more information, it's hard to say whether this was a good faith move by Google, reflexive algorithmic moderation, or another example of American extractionalism.