The presenter does a good job of explaining the basic details that encompass each language. He explains the differences, the commonalities, the pros and cons, personal opinions, best practices, and industry norms.
It seems to me that many of these languages are based on the MVC Model, View and Controller. MVC is rather new to me so I won't try to explain it.
Watching the video, each of the frameworks offers strengths and weaknesses, some languages have common features between other languages, and some you have to write a lot of code while others have 'black magic' going on under the covers. Sometimes its good to have the language do you favors to simplify and speed up development, although you lose some control and you have to have a good understanding of why things are happening the way they are.
Some languages you can have a working app in just a few lines of code. Others you have to build out the structure and write a lot of code before you can start the app.
I don't think we had Intellisense in Classic ASP, so that's a good feature to have, because the code is wired up all over the place and I wouldn't call it spaghetti, but having the IDE assist in writing code is always a good thing.
I did a sample Angular application in Visual Studio 2013 and uploaded to my Azure account and blogged about it here.
And there you have it~!