I read your answer to be, "Science is not currently affecting on the ground management of domestic sheep on federal land. Maybe someday."Better understanding leads to better policies long term. Politicizing issues we still don't completely understand can lead to bad policies with unintended consequences.
What about on private property. How do you intend to control domestic-wild sheep interactions on private property?
Private property is more difficult. I'm more concerned about the management of my public lands right now. If the federal agencies were doing the right thing I could be focusing my efforts on education about best management practices on private lands. The science is clear enough to know that separation necessary.