The licensing of Esri server products isn't always straightforward, and there are many legal aspects of licensing that Esri's software products do not take into account when activating/licensing the products. For example, every ArcGIS Enterprise licenses comes with "enterprise geodatabase functionality," so what does it mean in the REST API when it says esriServerSDEEnterprise has a valid license but for 0 cores? After all, you have to run code on something!
If your questions are focused on license compliance, focus on your architecture and what is deployed specifically and not what products are seeing/saying for their licenses.