This isn't exactly true though. Especially for URMs.
Let me be clear, I'm am not saying 502 is a very competitive score AT ALL. I'm saying that with a good school list, it is possible. Will the applicant get rejected from most MD schools? Absolutely. But let's stop pushing the idea that it's a worthless score. The HBU's have a matriculation average lower than that, right?
Look, if you can take it again and do better PLEASE DO. DO should dominate your school list, but there's a chance you can get several MD interviews if the rest of your app is looking right.
Take a look at the
LizzyM calculator. With those stats Hispanic/Latinos have a 28% chance of MD and Blacks have 39% (national average). Be realistic with your school list, but don't completely count yourself out. Not when a few Caucasian students with 500 were admitted to MD.