Google doesn't want fake reviews on the play store. Its as simple as that. Google is removing these probably because they look like fake reviews, and don't care enough to spend time and resources investigating it.
That would be wrong but believable. I read some of the reviews, they did look very similar in ways beyond describing the same problems.
But I'm good with assuming malice, it seems like every company that takes action right now is unlikely to be doing it coincidentally. Maybe Google is doing it because of money somehow, hopefully it's an actual mistake that they'll fix. I suspect the former.
You want to try to avoid the mob jumping in on the reviews of something they never used because of some bad news.