Just to stir the conversation pot even more:
A 3.4 is not ideal, but I've had several friends at GT get into MD schools with a SMP GPA of 3.3-3.5, including myself. SMP GPA is critical, but a high MCAT and good extracurriculars will still help round out an applicant and keep them competitive for med schools.
Two of the grad classes are a participation-based easy A. The others are curved so that about half of the class can get a A, A-, or B+, and the other half of the class gets a B or lower (subject to instructor preference). I have had friends who barely/did not get above a B in some of the grad classes. I actually found them more frustrating than the med classes because they were less organized and less clinically relevant, in my opinion. We also took 2 grad classes at once while med classes were taken one at a time. It is absolutely possible to get A's in all the grad classes but their difficulty is easily underestimated.
I would say that the average represents the class as a whole but doesn't accurately portray the variety of individuals who pursue this program. The majority of students do not come in with a 3.3/32. A lot of people I met had a ~3.1 GPA or below and a high MCAT, while several others had a better GPA (3.3-3.5) and so-so MCAT who perhaps could've done DO school. You can see how combining stats of these students will skew the numbers toward the middle. Obviously, this is how averages work but my point is that there are more "outliers" than would normally be expected who do significantly alter the norm.
Some people for their own reasons do not want to pursue DO school. Many of the 3.2/32 students were very successful in gaining admission to MD schools after the SMP, so they achieved their goal. Not everyone did however, so this was a risk they took. They are now reapplying or pursuing other healthcare/research options. In my class we also had a large population of California residents aiming for their state schools, so many of them have higher stats as well. Just a few points to consider, as statistics can basically say anything they want!