This is a really good question and I'm finding myself wavering between two main thoughts: I can't help thinking that they do take the time to read each statement because of the significance of having relevant experience, and because there are so many factors that can affect GPA - both of which can be explained in a personal statement. At the same time, if someone applies with a really, really low GPA (like, a 1.something or low 2) that probably won't help in conveying their ability to successfully complete graduate level work (where its likely you'd have to maintain at least a B average).
So I guess I'm kind of undecided on this matter, lol. I'd be interested to see what other people think about this, too And congrats to Fierceflawless and MelMcC on your acceptances!