In the Community version of Visual Studio, I am just seeing "Productivity Power Tools 2017" listed in the installed extension list (I do not see the individual tools). In the Enterprise version, I am seeing both as seen in the video.
I wonder about all the steps needed to build one of these "modern web apps" and how this impacts productivity. I suspect that there are some really big and complex modern apps out there. It would be really interesting the hear from some "really big and complex modern app" developers to get a sense for productivity, testing, and the ability to find people well trained enough to work in those environments.