This is seriously misleading video. Windows containers are NOT production ready anywhere but hosted either in docker swarm or service fabric. Kubernetes support for windows containers are in beta stage and you will not get support from any of the vendors running windows containers in kubernetes. If you want to have supported production ready as mentioned in the video container orchestrator then you have only 2 choices and swarm actually is most mature out of those two.
In demo showing using token (Token-In) function, parameter called graphToken was supposed to be provided as input but it was not provided when function was called during demo, URL which was used was actual function URL with no token specified. How did function received token for HttpClient call?