it's an artistic statment made on behalf of the character of yeezus. Yeezus as we know him lives in confusing times, so naturally he is confusing historical moments like the fact that in fact, the 300 were Spartans and not Romans. By this we see that yeezus lives in a twisted reality where up is down and black is white. This directly ties into the theme of the album
Shut UP
300 b****es, where the trojans
my rap lines make no sense but your rap lines make no cents
I wanna say, you look so good make me wanna suck on your daddy . . . ,
but biggie was a wild ass nigga in the d*** game and prolly knew to cut out all middle men and go to the source.