Why? It was a tradition in those cultures, too. Why differentiate?
Why would you think it might taste of fish? It's a mammal, not a fish. Lots of things live in the water that aren't fish.
While I have only had whale once, while in South Korea, I'd have to agree. Maybe there are different flavors to different whales or cuts of meat but it wasn't something I want to eat again.
As for the general concept of eating whales and dolphins, this reactionary rage stems from the fact that indiscriminate hunting in the past nearly wiped them out and that humans recognize that there is an intelligence there not present in the cows, pigs, goats, fish, chicken, etc. that makes up most of a carnivore's diet.
Morally, I'm on the fence here as it seems that as long as harvesting the animals is sustainable then it's no different from any other animal eaten by humans.
If he was going to commit suicide he would have waited until after the trial. He beat the charge one before
in Florida (I believe). One would have to guess he was offed to because he knew too much about too many.