Christians are called to shed light on certain subjects, especially the ones that the world has got wrong. While alcohol is not meant to be consumed in the manner that the world does, it is not to be fully avoided. God gave us self-control for a reason. After all, our very own Savior drank.
If a Christian so chooses, he or she should go out a show the world how to drink without all the mess that goes along with it. Yes, it takes self-control and awareness, but it can be done and would provide a pathway for many others to follow.
If Liberty drops their ban, they would make a lot of noise in the Christian world and let others know that it is possible to drink responsibly.