If she loses I think there's going to be endless discussion about how she ran too far to the left. She is really going all out on the base first strategy and if it pays off, hers will be a model all over but GA Dems will have to do a lot of soul searching if it doesn't.
If that were true, then she'd have no reason to go all over North-GA at all, and she wouldn't be making moves like going into Deep Red turf.
Also you have to consider what happens if Gillum wins [or even loses by less] while she doesn't. Clearly then she'd lose for being too much of a neolib sellout centrist hack failing to energize the base, all while Kemp perfectly mobilized his base.