Don't forget though that the GPA averages for DPMs are usually >3.2. Med school courses also vary significantly. The covered information may be roughly the same (i.e. what you need for boards), but the actual curricula, coursework, etc. are in some cases completely different school to school.
There have been multiple articles written about the efficacy of the MCAT in predicting things like success in medical school. The aspect of "success" that was most heavily correlated with MCAT was the first time board pass rates for the first step, but it also seems correlated with completion of medical school in 4-5 years.
Also, the analysis of the new MCAT (below) details this. That's the reason why they are normalizing the new MCAT average to be a score of 500, where 500 and above = high chance of success. The argument was that people pay too much attention to higher = better, where the data shows there are diminishing (or no) returns the higher the score is. They want (or at least they say the want) to make it more of a "threshold" for success, because that's what the data suggests.
Look at the end of this for some data (older data but still somewhat relevant):
https://www.aamc.org/students/download/378098/data/mcat2015scorescaleguide.pdf
Obviously GPA also plays a role in passing Step 1 on first attempt and graduating in 4-5 yrs. It seems the dip is somewhere in the 24-26 range, but below that range there is a steep drop in 5 yr graduation rate (6% drop) and in first attempt of Step 1 pass rate (10% drop). You can see that the initial drop happens somewhere in the 24-26 range (right around 50th percentile for the MCAT), but because its a range there's no way to know exactly where it falls, but at least you can say that below a 24 there's a steep drop.
I also want to make it clear that we are talking about statistics, and as a result we aren't talking about individuals. These only give us correlations, not rules. As you can see virtually everyone accepted to medical school that stays in med school
eventually passes the step, so if you are below a certain range (MCAT or GPA) that is consistent with a drop in success, you can most likely change that outcome with better preparation.
This makes sense. I could see a system like that working. Obviously a lot of the medical material is going to overlap, so this is probably a way to get around having two completely separate curricula and lectures (cheaper for the school).
I'm not sure if I'm one of those people you're referring to. As far as this subject goes, its possible your curriculum is the exception rather than the rule. At least in my area, the DPM programs are separate from the medical programs, so obviously my experience is less than yours.
It tends to be the case though that parallel programs are usually not identical. I wouldn't expect a PA program in a MD/DO school to be as in depth as the MD/DO program (obviously a DPM program would be more in depth than a PA program, but they're different). Its not a "better" or "worse" thing. They're different programs that lead to different degrees that result in different jobs. I wouldn't expect them to be identical, because if they were, why wouldn't the DPMs just get an MD/DO or the MD/DOs just get a DPM? I wouldn't do DPM, mainly because I don't see myself as a surgeon, and I wouldn't expect someone who wants to be a DPM to really want to be an internist, neurologist, radiologist, etc.
Obviously, I meant/mean no offense to any individuals or you, and I'm sorry if that's the case.