The Google Play Store has long been the bastion for safe and worry-free app downloads
It's nice that the article starts with this blatent lie, so that you know everything that follows is just regurgitating Google's marketing.
Even ignoring that most of the apps in the play store are unreviewed proprietary spyware sending all their data back to Google, there have been many instances of obvious malware being distributed through the play store. It seems like they are trying to sweep that under the rug.