Some dramatic terminology there. But Tets is right. He was the director of Advent Children, but had nothing to do with Dirge and little to do with Crisis Core. To wish for this game to fail is stupid. Also, Birth By Sleep had the best gameplay since Kingdom Hearts 1, and the rest of the game was pretty good too. You're aware he created KH in the first place, right?
I assume what Dagger is referring to, Tets, is that interview from a long time ago where Nomura implied that Versus was gonna have a world map and a fly-able airship. I kinda doubt that's still the case though.
But I don't understand why it would be so hard. Even if the characters never walk around on an 'old-school world map', why can't there be something similar just used for when you're flying the airship.