This is a bold claim. The VRT journalist were able to re-identify few data subjects and confirmed with them that their data was being listened by Google contractors. "‘This is undeniably my own voice’, says one man, clearly surprised." wrote the journalist.
> The Google Assistant only sends audio to Google after your device detects that you’re interacting with the Assistant.
Well, this is not what the contractor said [1]. The contractor heard private conversations, sex scenes, and violence including "a woman who was in definite distress".
https://www.vrt.be/vrtnws/en/2019/07/10/google-employees-are...