Most likely yes. It's not uncommon for platforms to remove some bad ratings in situations like this. And I would even argue it's legitimate. Not all of these reviews are genuine. I wouldn't be surprised if some people created multiple accounts to leave multiple bad reviews. And if Google detects that, they are of course going to remove them.

They also do it with fake positive reviews. Not nearly as diligently but that's because no one puts attention on them. While you can be sure Reddit was complaining about some reviews.