Down in the Conclusion section at the bottom:
"AWS, working with Grafana Labs, will be contributing licensing revenue and code to help make Grafana even better, not just for the AWS service, but also for open source users and Grafana Cloud customers."
The initial content that I had read indicated that it was Grafana Enterprise licences that would be contributed back.
This is a new step for Amazon, which is good. In this case this feels closer to a first-party AWS Marketplace app for Grafana.
What's the survival rate of Amazon partners?