Answer
Both facts are consistent with the correspondence principle.
Work Step by Step
The correspondence principle requires that old and new theories agree in the area of overlap, where the old theory has been well-verified.
When there are many photons and the "graininess" of the experiment is not important, both theories must agree, and they do. When only a few photons are observed, only quantum physics makes the correct predictions.
This is discussed on page 611.
