DO schools only proove that to become a DO you dont need high MCATs. You also dont need high mcats >25 to pass the classes in MD school. The difference will become evident during step 1. MCAT scores have a correlation to STEP 1 scores, it doesnt come as a surprise that DO students do worse on Step 1 compared to their peers.
4.0 really doesnt mean the person didn't BS their way to a 4.0, college corricula and their scoring and grading is non standardized. I have taught college classes where just attendance and turning in assignments in time led to an A. The MCAT is the great standardizer. There are plenty of schools like Harvard where there is rampant grade inflation and the median grade is an A. This is a reason why I made the comment on
LizzyM, the higher you are on the lizzyM scale the less likely you are to have academic difficulty in medical school. The MCAT is more predictive of difficulty in Medical school according to the research I have seen and usually above 30 everyone is in the clear.