This has nothing to do with the code itself, and anything to do with how it is managed. Take a look here:
The weekly drop is an MSI. I don't like MSI. They taint my system, put things in places I don't want, and in general annoys me.
Okay, so let us just grab the source directly, right? That is what I tend to do anyway.
Oh, I forgot, there isn't any source repository available.
A zip file is the least I would expect.