Hope you don't mind if I censored you being rude...anyways I'd love to hear what 97% of the game required a party. We could surely hash out a real percentage of what % of the game needed, I doubt I'll get a response because you are as wrong as could be.

Of course it would be easy to assume your being hyperbolic, but just because leveling and group endgame content was a large part of the game doesn't mean it was the entire game.
Lets see i quit before the cap raise so lets see all the solo content in XI.

Lvl 60 job Fights for job spec gear.

Campaign

A hand full of side quest/story missions.

Fields of Valor.

I think that sums up all the solo content before the level cap raise.