The article states that it's just minke whales and though I haven't got time to do thorough research (paper due for tuesday) it seems like it's the common and arctic versions where the common is of "least concern" and the arctic is data deficient (though estimates are pretty high).
No doubt that there are whales that are endangered and should be cared for and the ones hunting these should be stopped by pretty much all cost, but it seems like this "scientific" whaling isn't of whales that are endangered (though once again, my head is filled by repatriations of POWs during WWII meaning that I haven't really checked it thoroughly)