  A. Dragan and A. Ekert [New Journal of Physics, 22(3), p.033038.] have
recently claimed that fundamental properties of quantum physics (e.g.
fundamental indeterminism and the principle of superposition) can be derived
solely from relativistic considerations, if one takes as physically meaningful
superluminal reference frames. In this comment we show that their arguments are
flawed and their claims therefore unwarranted.
