First of all, Tyrese Cooper was not arrested because he was suspected to have stolen a car, he was arrested because he was with a group of people who appeared to be attempting to steal a car (given the cut lock on the gate and the lock cutter in the vehicle they were in). That is many, many steps away from actually hitting the road in a stolen vehicle. It is definitely plausible to me that one of his "friends" called him up at ~7:00pm and said something to the effect of "Ayo Smoke, can you come swoop us at the airport?" which would have then led to him being with the group of people.
Second of all, even if he had stolen a rental car (not even really anyone's personal property) I would still not consider that crime to be anywhere near the moral low as the crimes of the two (accused) rapist high profile track athletes currently competing. Yeah, yeah I know the charges were "dropped" in both those cases, but let's be real here.
And finally, I don't like how MileSplit covered this at all. They seemed almost excited to post about this (likely because they knew it would drive up page views), and as an organization that works closely alongside young adults and even children, that makes me very uncomfortable. They seemed happy enough to profit off of his on-track achievements up to this point (money that Mr. Cooper received none of, by the way), even doing a "day in the life" type video with him.