This is exactly the case. API calls/cli tools never went down because they tickle the control plane APIs directly, and the Portal also tickles those APIs direct

This is exactly the case. API calls/cli tools never went down because they tickle the control plane APIs directly, and the Portal also tickles those APIs directly. The Portal seems to just be a client-side web app, and the CDN serving that and what ever minimal server-side infra that makes login work, etc was what was targeted by the ddos