A Change to Google Code Download Service
google-opensource.blogspot.sg
google-opensource.blogspot.sg
https://help.github.com/articles/downloading-files-from-the-...
Other than that, there are open source projects on SourceForge that manually use adware installers of the publishers' own choosing (OpenCandy, Sweet IM, etc) to try to make money. But I've seen this on other services as well, since it's up to the publisher
I don't know if I've just become spoiled by Github, I remember just mailing patch files in the past and being okay with it, but when I came across Savannah, nothing about it made me want to contribute. It turned me off completely and I moved on to work on something else.
It's like complaining that Amazon can't deliver to you because you don't allow FedEx in your building.
IOW they block Drive not because they don't want people to download open source tarballs from it, but because they don't want them to use it for company files/docs.
2) data control/access. Same reason they don't include sd card slots on nexus. They can't mine/ad adds on offline data. And google code was too hard to monetize (old system and all)
3) inside Google, engineers get big raises when they make their pet projects work (see mayer and gmaps) and abandoned projects can be fiddled by anyone. So abandoned gcode gets abused at will by prodigal gdrive rising star. Much easier to sell you added users to a project being monetized than to justify you added monetization to a project the press doesn't mention anymore.
As for alternatives, SourceForge still supports binary downloads. Github introduced the feature this year as well.