Really? Seems like standard operating procedure for a lot of teams in that situation. As mentioned, the Huskers needed to bank a few more seconds to get a third shot at the end zone, otherwise you want to time your two or three plays and possible field goal to leave as little time as possible on the clock, a luxury you have if you think you're already in field goal range. The game announcers were even speculating whether Fickell should take a second time out to give his offense a shot.
The end zone fade isn't the only play we can run, but it is the one the defenders are less likely to intercept. If you watch the Maryland game-ender it was a pretty good call and Coleman probably had a touchdown for the taking if he thought the pass was intended for him. Last I checked, a lot of folks here hated that call. This team definitely has red zone problems, and precisions routes against loaded prevent defenses probably aren't the strength of a new QB and young receivers who just blew the last game.
The play I would have called? A fullback counter, and he woulda just gone whoopin' and hollerin' straight to the end zone.