It is easy to see how this makes it easier for newcomers to participate. There are no longer pages upon pages of instructions on how to set up a build environment and so on. All that is required is to clone one Git repo and start building. The build system will take care of all the rest.
The eventual goal is to be able to build the entire stack fully from scratch on any platform, even Windows with the Visual Studio compiler. Unfortunately there are still a few missing features but we'll get them added at some point.