After listening again, Matt asked if the quarterback, or someone of similar stature would have been able to come forward about DJK (after Rob said it would be tough for a player to come forward with that, and rat out Iowa's all time leading receiver). After that, Rob said he'd go out on a limb and say that Stanzi and DJK don't hang out and Stanzi doesn't know what's going on in DJK's personal life. Then Matt retorted with: "Oh come on. See I don't buy that." And it escalated from there. Matt also said: "You don't think that DJK and his quarterback have a tighter relationship than with someone on special teams?" and "He was living with a kid that was convicted of having drugs on him. And you're telling me that nobody on that football team, the QUARTERBACK, who helped him set the record to be the all-time leading receiver at Iowa, did not know?"
Those two lines really highlight what he was doing. He specifically singled out Stanzi. Whether he phrased it that way initially doesn't really mean much. That's what he thinks, and he threw out on the air.