Well, that's what he think and wants to fight since he's landed a question like that. I don't see anything ambitious with that since he probably have read a lot of things during the Trojan War and he's caught amazed by Achilles.
There could be other boxers that would say to answer if they're asked if they wanna fight against Goliath, they would answer it confidently with a yes.
As he's suffering right now physically and mentally, we just want the best for him and praying for his complete recovery.
Well the interviewer wants a different answer from him that is for sure, he maybe wants Tyson to pick strong guys that are available for him to fight, but Tyson just got a safe answer that he really wants, and because of that we will surely have different opinions about it, some will surely want a more valid answer that they want Mike Tyson to answer, while Mike Tyson is just honestly answered it blatantly not worrying anything, well it is really a playful answer,
Yes, usually with such interviews, they're trying to make some buzz through athletes like Tyson to have a match and flame it with other boxers. But his answer wasn't expected if he's into Achilles. Well, the good answer then for him.
It could also be that he have just got some attention from him and he's doing some series of book reading or watching documentaries about it, so, that's the answer that he's got. Nevertheless, I don't see it as something to think that he's a pushy boxer.