"Everyone says your GPA doesn’t matter when you’re finding a job." Uh, maybe for a second job- but when you are still a senior in school your GPA is one (admittedly crude) measure of how well you were doing at your last occupation (student).
I agree, and am not trying to make fun of the original author. The hiring company is going to look at the most relevant experience you have- and in some cases it is going to be GPA.
I think it can certainly help if you have a good one - I certainly would have pointed it out had it been true in my case - but if it had been the decisive factor I would not have gotten the jobs I did. Just my anecdotal experience.