I disagree I don't think he got overshadowed at all, there were some tracks where other top tier lyricists held their own though like in Yah Yah. For any other rapper including Jay Z someone keeping up with them is a normal thing, for Em we've gotten so accustomed to him bodying everyone that others keeping up sounds odd.
But for example, on you gon learn, Em absolutely bodied Royce on that track. And Royce was not going easy to say the least.
The last time I really felt Em was overshadowed was on Lucky You by Joyner, that was on Kamikaze though.