I don't disagree with your point at all. Hopefully https://dot.net/core will become that. As @runfaster2000 says the team have taken the point on board and are working on it.

However FWIW, I put together a C# on Linux Workshop for DevConf.cz earlier on in the year that might be useful for some folks https://github.com/martinwoodward/csharpworkshop - also includes links to the docs for building from source etc if you want to go really into the details.