Ego didn't make the trip... http://www.nola.com/lsu/index.ssf/2013/12/lsu_dt_ego_ferguson_suspended.html
The way they use the word 'suspended' in the link, got me to thinking, wtf, has he done and is the damage just limited to him. So I click the link, only to read, "The source would not disclose the reason for Ferguson's absence but said he was not suspended or missing for academic reasons.." Clever way to draw attention to the article, but kinda chickenshit if you ask me. If I were Ego, I'd be pissed.
I'm reading that he didn't make bowl trip because he is academically ineligible since end of December semester.
He's either had contact with an agent or like you say he's academically ineligible. Twitter has those as the two main theories.