Seems like the author is suggesting something very similar to what [gpm][1][2] provides. I use gpm for a few projects, along with a makefile that creates a GOPATH at $(pwd)/_build, and it works fairly well.
Yeah, that plus gvp. But if you dig into both they're just shell scripts under the hood (nice ones, though!) and given that I've got a makefile or shell script to build the container, run tests, etc. then adding a third-party tool is just one tiny bit more overhead.
[1]: http://java.dzone.com/articles/why-gpm-right-go-package
[2]: https://github.com/pote/gpm