It became an independent company some time ago. Not to say there are no links to Google left (the dependency on Play services at least seems to indicate otherwise), but don't spread untruths.

I'm curious if even a single one of the 'Pokémon Go is stealing your privacy' authors is not on Facebook or doesn't have a Google or Apple account. Considering the application only works on Android and iOS, I think it's quite unlikely any of them truly care about what they write. All those websites even use Google Analytics, what a surprise. As szopin said, it's just clickbait.