Thank you Nick @npd and @mallory for your clear article on #SDWAN and #netNeutrality.
I would stress one of your points:
Applying #serviceLevels in poor areas may flatten best-effort traffic, resulting in low #internet quality for the many.
(Poor areas is my gross approximation for where the circuits are small. We may also consider "sparse" areas where the circuits are rare.)

Fair quality may remain in the central region of Western Europe:

Slicing the Network: Maintaining Neutrality, Protecting Privacy, and Promoting Competition 

A technical and policy overview with recommendations for operators and regulators Since the 1990s, the Center for Democracy & Technology (CDT) has been concerned with the ways in which “service delivery models of the Internet risk diminishing or eliminating the rough ‘equality of voice’ between small and large speakers that is a key characteristic of […]

Center for Democracy and Technology