Actually, I think the issue is that you just don't understand the meaning of those words.
The "rich module ecosystem" he is speaking of refers to npm. With node and npm it is trivial to install a few modules from the command line, write up a custom server, and very quickly have yourself a dynamic web page or API.
The "realtime JavaScript cloud" is basically any node application running on a service like Heroku or with any number of hosts and providers ranging from self-managed VPNs to esoteric AWS services. Applications that run on this realtime JavaScript cloud are incredibly portable as engines can be fired up and torn down very quickly across both server-side and client-side environments.
This service that he has been a part of creating does exactly this. It empowers the user by streamlining existing development processes.
I would say that his sentence is rather meaningful contemporary industry jargon.