Do you get it when some app or game says which operating system it's for?
Apples and oranges.
As a user, I need to know which operating system an app runs on, otherwise I might not be able to run it.
The language used to write it plays no role in that.
This is an open source project, where you need to know if you know how to edit/fix/compile it if needed.
I use (directly or indirectly) thousands of OS projects. I can do those things for a handful, and maybe a few dozen in theory. I wouldn't stop using lots of great utilities just because I don't know Go.