Bloody hell.
But from the sounds of it, the species that they MEAN to target are those farmed for food, without consideration of limited if any interaction between ornamental fish sold to hobbyists and those sold as livestock for consumption. There's also some information in there saying that the virus they are targeting becomes non-viable and incapable of reproduction in saltwater above 20 degrees Celsius. Don't know how much of that is accurate or will bear the test of time, but I feel like I can be hopeful of getting a wrasse for my system when it's ready.
Wouldn't the UK's current status having left the EU also allow suppliers to route through the UK instead of the EU? (it's a small technicality but maybe a viable one?)