In the article, it said reselling value, that is the retail price in USA.
Assume $40 retail per head $2500/40 => 62 heads. and imported in "12 pieces". So it's about 5 heads per pcs and looks very standard in the trade size.
In the article, the agent said, "The coral is protected under the Convention on International Trade in Endangered Species of Wild Fauna and Flora". I think many of us are not familiar with it being an endangered species. If we run a quick search thru the endangered list, I don't think we can find it. May be I just missed it. If you see it in the list, please do report back so that all hobbyists know about the status. However, I must add there was another bust about the same type of coral years ago, so may be it's illegal to bring into US after all.
In the article, the focus seems to be about fraudulent invoices so he could mislead officials about the value of an import, under-reporting it by hundreds of dollars.