Yeah, I think that's a fair analysis. oldkyhome above was making an interesting parallel to the 2019 gubernatorial race and although it's not a perfect comparison, it does show why the Yes vote lost by the margin it did: even though it overperformed Bevin by raw vote percentage in Eastern Ky., it pretty much uniformly did worse in (much more populated) Central and Northern Kentucky
On this note, a cursory, very rough county count indicates to me that the amendment failed in KY-04 (Thomas Massie's district) - by a margin that might be similar to the statewide count; notable since the seat is nominally several points to the right of the state; Beshear lost it by nearly 8. I'm less sure about the exact margin, though, since I don't know how to get district numbers in the two split counties, Carter and Nelson.