As an aquarium fish hobbyist, I never agreed with this genetic engineering of fish. However, they do not post any threat to local fish populations as they will be a totally different species that cannot breed with other species, and they will not stand any chance of even living in the wild as their artificial day glow and neon colours will make then stand out like a sore thumb to predators..
In am, however, happy that they trying to stop the production of them. It's unethical to be breeding such fish....they market them more like disposable toys
than living animals.