Should test prep programs try to teach academic content?

When I read statements like the following, I become distraught about trying to teach students to score better on a test by putting in the hours to learn the content and practice the skills being tested.

According to the $2 billion test-prep industry, performance on the SAT and ACT can be improved with tips and tricks. "We don't pretend to teach students a lot academically," says Ed Carroll, an executive director at The Princeton Review. "Taking tests is a skill that can be developed, like playing a guitar or tennis."

Source: 10 Things College Admissions Tests Don't Do