Regardless of the severe methodological flaws, you can a-priori rule out a study like this: cultural taste is anti-inductive. ie., whatever the trends are over

Regardless of the severe methodological flaws, you can a-priori rule out a study like this: cultural taste is anti-inductive. ie., whatever the trends are over period X, the subsequent period Y will depart from X (due to, eg., bordem, counter-culture, etc.). So you cannot predict taste based on an associative statistical model.