Response bias is the systematic tendency as a result of nonsensory factors for an observer to favor responding in a particular way. For example, the use of terms like "cult" or "goddidit"<quoted text>
Science itself is not closed to the idea. In fact it is perfectly open to the possibility of anything you can think of - God, aliens, fairies, ghosts, goblins, whatever you like. All it requires is that you propose evidence that can be tested via the scientific method.
It's not the fault of science that magic doesn't pass the scientific method.
What kind of magic have you tested? Am I missing something?