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I don't think it's intentional - TDT is so named with good reason. I'm not sure I can explain why at almost 5AM, but it has to do with sort of treating one-shot games as iterated games, or something roughly similar in spirit to that. One way to think about it is to imagine that you may be a simulation of yourself being used to predict the real you's behavior, and therefore to adopt the behavior that you would want the simulator/predictor to predict from you. Now, if you're not a simulation of yourself, you still need to adopt that decision theory so that when you are simulated, the simulations behave that way. At least, that's how it solves Newcomb's Problem - that's quite possibly not a good overall summary of TDT.