As bad as it looked, that is the thought i had when it was over as well. Typically, a big lead at the start of a basketball game is the most fragile in all sports. But this time, the Trojans were too hot, and the Ducks were just too bad, in everything, for it to be case in this game.
The Ducks looked like they couldn't move. On defense, if the Trojans weren't hitting 3's, ball and player movement created shots at the rim, on the rare occasion a Trojan missed, a teammate was right there to put it back in. meanwhile, the Ducks showed little interest in scoring at all in the first half.
In the second half, I think a lack of motivation for USC was part of it, but the Ducks did play better. I don't think this game will be of much use for film study by the Ducks, other than a warning that it can't happen again.