Which is made clear from this shot from the end of the game. With time still on the clock there are Wake students running onto the court, with some nearly to the free throw line.
The Duke player has no time to try and get across the court to his bench. The fact that security couldn't keep students off the court till even the final horn shows the Wake administration was not prepared.
If security is able to buy 5 seconds, all the Duke players can get to their bench and this isn't an issue.
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