This is so wrong, on so many levels.
Pet store fish injected with bioluminescence from jellyfish, frozen, smashed into paste, and served as sushi under a black light? For a party? Gross!
The narrator isn't a scientist, he's an outreach coordinator, but he's "really excited about these fish... it's one way to get adults and children interested in science." I'd say that's a very far-fetched rationale.
Who in their right mind would tell their kids, "OK, kids... It's time to go to the pet store to get fish for sushi!"
Why not also tell them, "OK kids, it's time to go to the pet store to get hamsters for hamburgers!"
There's no difference. And neither is scientific.