A ground wire between two light posts on the field did not connect to the circuit breaker,
I would be worried if it did! Obviously, the press and general public can not be relied on to give technically accurate information.
On interesting thing is the blame placed on workmanship. A missing ground should not happen, of course. But the last major electrical work was 11 years ago. Assuming that the lights were part of that and that they are metal halide, they would be nearing "end of life" expectancy-and a common failure mode is for a ballast to short to ground. Properly grounded, this results in a tripped breaker. (I would hope that someone did not remove a ground to remedy that problem.) A short is not necessarily bad workmanship.