TS is something I can live without. Been with Angular for the last 5 years. Now using Vue2, without TS. The productivity increase is noticable. Pumped out 2 sites with Vue that would've taken me months with Angular.
But that's not the point I guess.
I was used to "dynamic language", did PHP for over a decade and you know I really don't need the overhead of defining a type for every little variable.
TLDR: New constraints on how we approach teaching in the handbook / Omits trying to teach JS concepts / New compiler-backed code samples give better tools for describing how things work / PDF and Epub files for offline