Putting significant UI work off until a patch is always risky. Sure, Stardock makes patching very easy with SDC, but there are still plenty of people who will buy Sins at retail, and wonder why feature X isn't present out of the box. Many review sources (including magazines) make it a matter of policy to review games as released, not as patched.
I don't want to turn this thread into a debate on patch policies, so let me instead say that being able to choose unit facing at the end of a movement order seems like a pretty core UI feature to me. In fact, I'd prefer to have the ability to choose facing above the ability to execute 3D movement, another UI sore spot around here.