While that leak was certainly damaging, I doubt GCP is going anywhere in two years.
If Google's strategy to catch up to AWS and Azure fails to gain them meaningful market share, I would expect them to change their behavior to succeed. It's good business.
Yes, We have the plan but have not started it yet. You can see the "chaos-cloud" TODO here https://github.com/pingcap/chaos-mesh#roadmap.
Feel free to tell us your idea of doing the chaos for AWS and GCP.