In all seriousness, you're right to not expect much. Haven't been this season, but there should still be a craft beer concession out in the OF sections (under them, tbh). It's worth a stop if that's up your alley, some good selections, especially for a baseball game.
Also some nice breweries not too far from the CropDuster. Green Bench, Cycle, maybe some others. Yeoman's Cask and Lion also opened a St Pete location a handful of blocks East of the stadium if you're looking for a pregame or postgame meal. Better than Fergs.