I agree with a lot of your post, but don't agree with this. I'll use the "one model moving closer satisfies rage" interpretation because it satisfies my comprehension of the rules the most, not because of any bias. I play plenty of contentious rules issues where others have had 'wrong' ideas about the rules that disadvantange my side of the board, reference WBB and sweeping advance for my Necrons, or Blood Angels and cover saves for vehicles (something I was proven wrong about).
It's too easy to turn your argument around and say you'll play against rage insisting on your interpretation because it's less detrimental to your success to have more uncontrollable enemy units. But I wouldn't think that to be correct?