Also, with the addition of tunnel, suddenly you can purchase fairgrounds with your for 4VP and cut your opponent off on 6VP (so sorta effectively worth 5VP but not really).
Your opponent was playing for a mirror match, which her decisions would have been decent. It just makes it hard for her to recoup when you're playing BM-Witch on a 5/2 split. With these tiny adjustments, your 7-3 curse split would have carried you through.