Google says that the Location Permission used by Hybrid Assistant is not compliant with the Developer Program Policy.
Hybrid Assistant uses Location information to provide telemetry data for Hybrid Reporter charts and stats, and this is an integral part of the app purpose.
Location data is always stored locally to the device, and it's not shared with anyone unless the user explicitly exports the produced reports.
We're going to write to Google Support to sort this out and we're confident Hybrid Assistant will be available on the Play Store again soon...