read the article the type of dolphin they are hunting aren't in very bad shape, and if they were ever to be, I doubt this small island that follows specific regulations would be the cause.
The article does not broach the matter of the oceans being overfished which means less food for the dolphins so there are less dolphin as time goes by.These people are certainly doing their part to decimate the dolphin population in their area.Japan is another island who consumes aquatic mammals even though there are rules and regulations in place that they thumb their noses at.
btw you may be interested in how kosher meat is prepared, they slash the animals throat just deep enough for it to put out a lot of blood, then let it struggle until all the blood is pumped out of its body. The blood in the whales case is incidental to servering the spine since they must pass through arteries.