I think in any other venue Duke without Zion (and ready to gameplan to not have him vs losing him mid game vs their rivals like this week) is a very good team. The rest of those guys are more than capable of stepping up. The Bulls had a better record in the games Jordan missed due to injury than the ones he played. If he were done for the year I wouldn't write off Duke to run through the brackets and win it all.
But I think an amped up road environment playing a team likely to bring its best game of the season who has confidence from beating you earlier in the year drastically changes that. You need the baddest dude on the court for a game like that.
We give K a hard time but we are going up against an extremely good coach who knows us well. If they had an older team I think things would be different.