When confronted with information that the economy is actually improving despite their strong belief that QQE will not help the economy grow, these critics will try to reduce such dissonance by denying this information or by arguing that even though economic developments are favorable at the moment, they will definitely deteriorate in the future.
For example, the argument that any future exit from monetary easing will cause major problems also tries to reduce discomfort by referring to future possibilities. Since such arguments focus not on the present but on the future, they allow these opponents of QQE to avoid facing such dissonance for the time being.