Tongue Eating louse surprise

Quite the surprise. Mum was frying some red snapper fish (at least I think it’s red snapper fish from the photo. We have more if the first picture makes it dubious what snapper it is (Im from the UK)) for my dad and I went downstairs to check up on it, and saw something poking through the mouth of one of the fish. Used a fork to fish it out and looks like there was a tongue eating louse in one of the fish. Remembered seeing such parasites from Casual Geographic’s videos, so decided to show my dad them too

What makes it even more surprising is I made a quick google search and apparently on Wikipedia it states such parasitation (ma speling) was rare in red snappers from the UK. Also, there was an article from the Lewisham area (where I live in) about said critters in Red Snapper fish: https://www.practicalfishkeeping.co.uk/fishkeeping-news/tongue-eating-louse-found-on-supermarket-snapper/. However, I don’t think my dad bought the fish in the Lewisham area. First time he’s bought these Red Snapper fish too as the other red fish he usually gets was out of stock and Mackerel prices are up