> Are you kidding me? The product or package maintainer should handle this better.

Man, you got that right. They should make it so that it can be installed through Package Control.

Oh, wait...

For a bootstrapping method, this seems completely reasonable. It doesn't involve downloading inscrutable single-platform installers, or opening a shell window, or any other external dependencies. The whole process runs inside the one environment you're guaranteed to have: Sublime Text itself.