I get that when it's just a personal project, but the Github workflow is also very nice to have. When I want a buddy to access my private repo, I just add his/her GitHub user name, I don't need to have them create a BitBucket account. I don't need to figure out how issues and PRs work with BitBucket, etc. It's the network effects and UI that I'm paying for - one UI private or public. Plus, it supports a service I value very much.

On a more important note, you're probably not GitHub's target market. It's more like agencies and in-house dev teams.