This option is available until {TenantDataLocation.EligibleDataLocation.OptinWindowEndDate | date:'mediumDate'} and is provided ...

This option is available until {{TenantDataLocation.EligibleDataLocation.OptinWindowEndDate | date:'mediumDate'}} and is provided to accommodate organizations that have strict data residency requirements and require their core customer data to be stored at rest in the {{TenantDataLocation.EligibleDataLocation.LocalDataLocationDisplayName}} datacenter region.

By choosing to move your data, you will limit Microsoft's possibilities to optimize your service.