I am guessing that AT&T owns the pole, then if someone else(utility) attaches to the pole, they must have some type of agreement with AT&T.
Poles owned by the electric utility, that have cable and phone attached to them, have agreements in place that permits their use. The same thing happens when the pole is owned by the phone company and the electric utility attaches to the phone company pole.
Google would have to make an agreement with LG&E to attach to the poles that they own, in addition to the poles owned by AT&T.