I don't think a spherical world map would be hard to implement if you approximated it to a icosahedron then subdivided each triangular face into 3 smaller ones and repeat until you get the desired resolution you need for it to appear spherical enough when flying over, then map over that new structure Whether that can be done on a SNES, I don't know (probably not), but they had no excuse to not try that on the PSX
Back to the phrase though, does anyone know what it says in the Japanese version, or am I going to have to play that far? I've only just arrived on the Veldt so still got quite a way to go if I'm to check for myself