So. Why would MX not just say" Terra" Instead of "that man" seems suspicious to me :/
It's still really unclear who he's speaking to, of, and when. Sometimes it seems like two different conversations; on the one hand, talking to Ven about "that man" infused with darkness (DS) and then preaching to Terra about how he can't wield the Keyblade and Terra responding with "screw that then, I protect mah homies! D:<"
All conjecture.