No, I think you’re not reading it literally enough. “Microservices” generally does mean separate HTTP (or at least RPC) servers. Near the beginning, the article says:

A microservice has a very well-defined surface area. Everything that flows into the service (requests) and out (responses, webhooks)

I think a better word would have been "modularization" than "microservices" as I also highly correlate "microservices" with http-based calls.