I love sensational writing. "Penalty flags all over the field" probably means one flag was thrown.
Let me get my A's and B's straight.
10 seconds on the clock. Team A is trailing by 3 points. They have the ball third and goal from B's 3-yard line. Team A throws a pass that is intercepted by B1 in B's endzone. B1 returns the ball for an apparent touchdown and the game clock expires. During B1's return, B2 is flagged for a block in the back.
Here are A's options.
Decline the penalty: allow B to keep the score, and the game is over with B winning by 9 points (unless the try must be attempted for playoff purposes).
Accept the penalty: B keeps the ball because they had "clean hands". B's ball first and ten at the spot where the penalty places the ball. One untimed down is then run.
Isn't this the same ruling for NCAA?