I think the language question seems far more likely to be relevant than the source repository. When software was on Sourceforge, we could download it and attempt to compile it. Now that software is on Github we can download it and attempt to compile it. What's the difference?
But when most open source software was in C, figuring out the dependencies and getting it to actually compile was hard work and it was nice to delegate it to the distro. Now that so much open source software is in other languages which have their own package mechanisms to manage dependencies and don't require you to work out the best compiler flags, there's less reason to involve a third party.
Biting the hand that feeds IT
