The fine print:

https://cloud.google.com/exit-cloud

* Free data transfers related to Google Cloud Exit are available on Premium Tier Network Service Tier

* Only data residing in Google Cloud data storage and data management products are covered

* You must report any changes to your migration timeline set out in your request form to the Google Cloud Support team

* You must submit your free data transfer request prior to the termination of your Google Cloud agreement

* Google Cloud reserves the right to audit movement of customers' data away from Google Cloud for compliance with program terms and conditions