They are wrong.
As my previous post pointed out, the GPA and the LSAT score indicate two completely different things about a law school applicant. The former shows how diligent an applicant is, while the latter corresponds to the applicant's reading and reasoning ability. In other words, the GPA is longitudinal data, while the LSAT score is a snapshot of a person's mental capabilities at one point in time.
First of all, there is no argument that one's reading and reasoning ability is relevant to law school. Do you think there's anything else going on in law school? Sure, there is the Barristers' Ball, but you didn't go to law school to go to prom, right?
Now, one could say that diligence matters in law school too. Yes, that is absolutely true. It's diligence that will get you through 300 pages of dense reading. But here's the kicker: diligence doesn't matter if your low reading and reasoning ability prevents you from understanding what you're reading. That's the problem with students with low LSAT scores and high GPAs; they're going to be the students who work hard, but don't understand what they're reading in law school.
You kind of want your lawyer to understand the case that they're reading, right?
The LSAT Genius
New York's Best LSAT Tutor, Bar None.