Google hired the firebase team, integrated their product into the platform and completely rebuilt the DB with Firestore, and made Firebase into their mBaaS powe

Google hired the firebase team, integrated their product into the platform and completely rebuilt the DB with Firestore, and made Firebase into their mBaaS powerhouse that supports hundreds of thousands of apps. Its not some free product that's drawing a lot of resources, it's their entire mobile app developer strategy, and under many contracts to maintain the service.