Just a few of thoughts about this experiment.
1) This experiment took place at about the same time as the fish anti-freeze gene in the tomato plant manipulation for a frost proof tomato. Geneticists were looking at lots of animal to plant splices. It might be that a bioluminescent trait would easily demonstrate if the gene was taken up in all plant structures or just to roots, leaves, stems, blooms or fruit. In a fire fly only the tail glows.

2) I consider these type of splices particularly problematic if they get out of containment. With the introduction of insect/animal genes plant pathogens may jump species or become viable in new vectors. It would be a true drag if honey bees could be infected with terminal tobacco mosaic virus, or if insects could transmit cymbidium mosaic virus. In other words, it's a good thing these plants are not available to the general public.