I am not sure having all of that together in one demo would help or just be to much noise. It might be better to pull each feature in to its own isolated demo. That you can see how they are differ.
Then when it comes to integration of a front-end framework in a real app with non trivial but common use case the one has to compare and learn the hard way by scouring forums or diving deep down into source.
E.g. dynamic templates are discouraged in Vue, but customers would like to have a control over couple of loadable HTMLs without npm work - think of most CMS stuff.
My point is that I came to this article with true intrest that the author made a real non-trivial application comparison, thus we could learn subtle gotchas and battlefield tactics. But then I got letdown it's another todoapp to compare basic syntax.
https://github.com/gothinkster/realworld
This is a medium clone built in various frontend and backend technologies.
A todo app written in many many frontend tech stacks.