I was looking at the property ownership maps today to see who the northern neighbors are and decided to look at the aerial layer and kept going west and made a discovering. The notch outside the west fence that TECO owns is inside the Auburndale city limits, but the preserve is not.
I can't think of any advantage except maybe that Auburndale could claim the place as a natural area in its growth plan. Who knows, the city may map it conservation or at least try.