@Vincent-TP 

I should interpret this way: Intelligent Self-Organization & Self-Healing are EAP device level features, therefore they always work regardless of using either Cloud-Based Controllers or SW-Based Controller.

I came to above conclusion after comparing different controllers types (Cloud Essentials/Cloud Standard/On-Premises Standard) from the Cloud Management Platform. From the configuration parameters under each of controller types, there is no any configurable items pertaining to Intelligent Self-Organization & Self-Healing.

The WLAN Optimizations configuration parameter (available in Cloud Standard/On-Premisese Standard), as it mentioned, allow the controller to determine the optimum operation channels and power concluded from RF scanning, considering the traffic, deployment size, and client factors (so it is not related to Intelligent Self-Organization & Self-Healing working mechanism at all)