The individual key vault page shows several key metrics (total requests, average latency, success ratio) and even the "Metrics (preview)" (when accessed via the key vault page) shows the same metrics (albeit with a different name).

However, these metrics cannot be access via the Metrics (either current GA or preview) blade. Nor can they be accessed via the Azure CLI.

It would be useful to be able to correlate key vault metrics with other service metrics (such as app services), to do this it is necessary to have the data accessible via the metrics blade or the CLI.