Scares me! I worry that the impossible ( a modified fish escapes, or is introduced into the wild ) happens, they've already stated that this fish will out compete the wild relatives. I'm not worried about the edibility of the new critter.
A number of years ago Virginia funded research to hybridize the striped bass that inhabited the salwater estuaries around the state. The hybrid was vigorius in fresh water and it was introduced into Smith Mountain lake, where anglers loved it.
The state has been very vigilant in preventing any of these hybrids to escape into the wild. So far, so good. But it could bring disaster to the saltwater striped bass fishing industry if any did escape. Every outlet of the waters that contain hybrids must filter the water through screens small enough to trap eggs. The water then has to go through a settling pond where the oxygen levels are too low to sustain life in any fish that makes it that far.
All these precautions would be unnecessary if they simply didn't create these unnatural fish in the first place.
Don't try to tell that to a devoted freshwater striper fisherman.