Sigh.....
How do you come up with 10 seconds? They hiked the ball after 6 seconds came off the clock. You can't count the time the play takes as wasted time, as that is running an actual play trying to gain actual yards.
Spiking the ball take 1 or 2 seconds, they used 6 seconds to call a play and hike the ball, so that is "wasting" 4 or 5 seconds according to you.
Forward to the 1:15 mark of the YouTube video of the game. You will also hear Brian Greeseball saying they should have clocked the ball. Since that douchnozzle was wrong about absolutely everything he said, I am very comfortable saying it was 100% right to run a play.