No, it's a normal feature of Git. If I want you to pull my changes, I need to host those changes somewhere that you can access. If you and I are both just using ssh access to our separate Apache servers, for example, I am going to have to push my changes to a fork on my server before you can pull them.

And of course in Git every clone is a fork.

AGit seems to be a new alternative where apparently you can push a new branch to someone else's repository that you don't normally have access to, but that's never guaranteed to be possible, and is certainly very idiosyncratic.