As long as there is no confidential information in it (like passwords, environment IDs, API keys, IP addresses, or name of your clients), sharing it in the Community is totally ok 🙂
Attached is the Dashboard JSON for one that I use with my current customers. It should give an idea of how we can chart out the various additional metrics that are available with Oracle Insights.
Let me know if you have any additional questions.
It is strange - I don't see an option to download directly now either... As @AntonioSousa mentioned below, it seems you are able to directly visit the link in the source code to start the download.
Let me know if that works.