i Guess we will agree to disagree on definition. Foundational and fundamental is different then required. Given your role at Cisco  and how you define SDA, advise developers to remove the optional DNA-C ISE integration

Your statement was that "ISE is a mandatory element in the solution". That is inaccurate, since it implies you cannot do SDA without ISE. And not sure where you got your definition of SDA but it provides much more then just micro and macro seg. A fab...

This is not accurate in DNAC 1.1, you can deploy SDA without ISE/TrustSec. You just won't be able to do any end point segmentation (SGT's). But you would gain endpoint mobillity and macro-segmentation benefits(VRF), as well as several other benefits....