You can fall on the EULA makes everything ok argument all you want. Destiny was sold as a purchase not a subscription. Before you claim it's a license, not a purchase - all software including music and movies are licenses. Do you really want to argue that if you purchase an download version of music or a movie that the content provider can change that content at will? The fact that it's a license, not a good relates to what I can do with it regarding copying and distribution, not what can be done to the content after purchase.