It will probably have "do it this way or wind up dead" kind of stuff, sadly, but I've seen people do things differently and still win on YouTube... every new strategy has to be invented at some point.

If you don't like doing dungeons for endgame, though, I really wouldn't worry. Fat Chocobos spent most of their fighting time doing random high level quests, grinding, helping each other out on various party-required quests, stuff like that. We made our own fun, basically.