Well, like any other fiction product, I think it's literally impossible to say that one film is better than the other. Of course, there are so codified technical aspects that it can be said in a fairly objective way that a certain film has done wrong in them (certain narrative connections, an editing that does not respect the 180° rule, etc.), but otherwise it always part of personal tastes (perhaps some better informed than others).To the extent that any list like this matters, it serves to generate conversation. No one here is ‘blindly accepting it’. I suspect however that it is probably reflective of a more mainstream view of these movies. Mileage will vary.
Of course there is a critical consensus in defining some films as masterpieces. I think most people agree that The Godfather is better than Gigli. But if there is someone who thinks the opposite, that Gigli is the epitome of cinematographic art, can we really say that they are "wrong" or that they simply express their inalienable right to have personal tastes, however open to criticism they may be?