This seems like a response to the AWS Global Accelerator - a an anycast network that will route your traffic to the nearest configured load balancer, and shift

This seems like a response to the AWS Global Accelerator - a an anycast network that will route your traffic to the nearest configured load balancer, and shift traffic out if any of the LBs are down. Might also do all the internal routing on Google’s private which should be faster and more reliable than the public internet.