Neat idea and the ease of use is certainly attractive! I have a question though...

Couldn't one simply use a traditional CDN where ever their customers are which would then allow the inbound network requests to jump on private interface routing to where ever the app truly lives quicker - essentially making for a more responsive "business logic" app feel? If all infrastructure was on the same cloud provider, say AWS.

I understand this approach is less dynamic in nature but would have been a solution for the Ars Technica problem presented I feel. If not, what am I missing? Thanks!