This argument is anthropomorphizing. It assumes that the purpose of the purported simulation is to model humanity. Suppose it isn't? Suppose the purpose of the simulation is to model a universe with certain physical laws, and one of the unexpected outcomes is that intelligent technological life happens to evolve on a small rocky planet around one star out in the spiral arm of one galaxy. That could be a completely unexpected outcome, maybe even an unnoticed outcome, of a simulation with a very different purpose.