Ooh! Interesting theory. Although it rather supposes very smart plot planning by the SW which other narrative arcs don’t really bear out. At some point we might all look back and wonder what the hell the whole mega-dairy/Demara/Charlie/Justin thing was about. Perhaps it was initially something to do with the road scheme pushing David & Ruth to consider a move, ahead of the change of heart and the floods. Once that was over it seems like the whole thing has run out of steam. Perhaps it was there partly because of Rob and Helen too.