git push origin error (1.6.3 new default functionality)

in the past git push origin would just push all matching branches to the remote, and it worked. the new error says that's still the default. The new functionality is nice, but is it really the git way to yell at you if you haven't explicitly set the default? I think the default should remain the default, and it should continue to work without yelling at you for not explicitly setting it. if you want to change it that's fine.