Just think about this...even though ND lost, they played UGA all the way down to the final second of the fourth quarter. Name me another team not named Clemson or Alabama that could have went into one of they most hostile environments like that, with the talent that ND has and play a team like UGA so close.
Honestly the talent gap between the two team is very wide but ND played right up to their level. They just fell a bit short down at the end. Also their 12th man played a big factor for them. Who knows in a neutral environment things might have played out differently.