Oh. Well then. I... umm...
Demanding it may be illogical, because it's quite clear that there simply isn't any. Being of the opinion that anything that exists, including gods, should be provable via empirical evidence is not illogical. Especially when the 'thing' in question is supposed to be a sentient being that wishes to be worshiped! It is illogical that there is no empirical evidence that god exists... if he does, indeed, exist.
Demanding it may be illogical, because it's quite clear that there simply isn't any. Being of the opinion that anything that exists, including gods, should be provable via empirical evidence is not illogical. Especially when the 'thing' in question is supposed to be a sentient being that wishes to be worshiped! It is illogical that there is no empirical evidence that god exists... if he does, indeed, exist.