This is not true when the photoelectric effect is considered from the macroscopic point of view, that is, when the total current produced by the beam of light is measured.  In this case an increase in the intensity of the light results in an increase in the number of ejected electrons and in an increased current. It is only when we consider the energy  imparted to an individual electron on the atomic level that the relationship between  energy and frequency becomes apparent and the concept of quantization becomes necessary.