The .Net Core documentation is indeed a dumpster fire. As a longtime C# guy I can't even find the up-to-date "blessed" way to do things with ASP.NET anymore. They change it every version it seems. The DI/IoC stuff is definitely too pervasive, particularly in an ASP.NET context.

That said, the new C# language features really do reduce boilerplate when used judiciously - multiple return is now available, "expression-bodied properties", improved template strings etc. Lots of good stuff that is hard to find good documentation for :)