The medium internet user doesn’t even know what git is, so I think it is very likely that a lot of people don’t understand the way github works and are very upset by how “difficult” it can be to get an installer from it.

I’m pretty sure this is aimed at websites that have a “download” or “get x now” link on their website that just takes you to a git hub page with no obvious download section. It isn’t uncommon, and it can be frustrating. At the very least, it’s a bad user experience.