The bad part (with respect to the TV audience) was the fact Mussberger and Knight were confused about the whole deal: they actualy believed that time had to be added for the "stoppage" at 14.7 seconds.
i thought knight really fubared the end of that game, i like knight but he had an off day. he kept praising hayward for the tie up that was actually a reaching foul (which was funny because they kept showing the replay from an angle that clearly showed the foul while knight was talking over the top of it about a tie up. probably first time in his life where knight hasn't said something about an official), the confusion on the clock stoppage as you mentioned, and when the refs were talking, he kept barking "come on" "lets go" "what's the hold up". i'm sure knight just forgot that he was on tv, but it just sounded bad. instead of talking to the audience and trying to figure out what's going on, he's barking at the refs who are no where near him.
probably just an off day, it happens.