Well I'm mostly worried about the ONE rhythmic top 40 station, WWVA, in Atlanta because I don't think this is helping them at all. It took them a whole year just to get to a 3.3 in ratings and Atl is already sort of "anti-rhythmic/top 40". All this talking probably isn't going to encourage people to give WWVA a chance this weekend

and the Cumulus (limited) adult top 40 station there is probably going to get more listens (and weekend ratings) as usual.
Adult leaning chr WWWQ and the bunch of urbans in Atlanta may benefit from this. Here in Az, however, we have a bunch of chr's, so not much to worry about here (and KZZP is already doing well in ratings, so if they lose any listeners due to all this talking, they'll come back because we're used to the top 40 sound here). But markets like Atlanta, where rhythmic CHR is kind of "out of the norm", I'm not sure how this festival over the radio is going to help... unless they get to the music QUICK!
Anyway, I'm thinking, if KZZP here in Phx can get by with Dawson McCallister, then I'm sure festival talking shouldn't be that bad. Hopefully eventually, there'll be music, and not just a bunch of noise and people screaming with a live band echoing in the background followed by more people talking... I'm about to go back to 101.5 JamZ in a minute because I'm not in a "talk radio mood" at the moment.
A festival is nice, but... over radio? On a WEEKEND night? Hmmmm... Well KZON and KKFR will be mixing in the meanwhile.