Let's say you don't like cheese. Is okay for you to ask your local hamburger store to change the hamburger with the lot and take the cheese out to suit your likes? Customer satisfaction is the essence of good business, the more satisfied customers the better your business. Maybe the people complaining about cores are in the minority, that doesn't mean they don't have the right to voice their personal opinion on a feedback forum. It's exactly the same right that Bungie has to ignore them. But back to the hamburger, how would you react if the owner of that hamburger store said, bad luck that's how I make MY hamburgers you should just like it as it is?