I won't excuse the ejection, but it isn't a complete shock coming from another clueless, flag-happy, overly-involved AAC officiating crew in the heat of the moment.
If there's an O lineman or two on the committee of whoever it is that reviews this stuff, Koroma's chance for reinstatement ought to be pretty good. He's been punished beyond whatever offense he committed already. Then again, it's the NCAA we're talking about, so who knows what happens.