simplistic

simplistinen, yliyksinkertaistettu, yksinkertaistava Overly simple.
In a manner that simplifies a concept or issue so that its nuance and complexity are lost or important details are overlooked.
Allen Suess Whiting:

(Mao's) reliance on simplistic Soviet interpretations was reflected in his dismissal of Hitler as "a mere will-less puppet of the reactionary capitalists."(cite-book)

The cliché is not untrue, but, like all generalisations, it distorts reality so that overly simplistic judgments have to be tempered by a few qualifications.(cite-book)

(rfquotek)