Well I guess its ok then, since they are going to add this feature in the future as an update that you didnt pay for and that it didnt come with the game previously or in a dlc. Nothing in this is preventing you from getting exotics, into raids, or even secrets in story missions, its just emotes. Adding items behind mirotransactions like this after you had paid for the game and expansions does not make you entitled to them, especially if you did not know beforehand that these things were even gonna be added. Its not being forced so, no, its not taking advantage of people.