assuming we could of gotten a first in two plays, running a play would result in the least amount of snaps before the clock expired. if you argue that, you are arguing 1+1 <> 2
As I said, you are trying to score a TD while killing the clock at the same time. 3 plays is better than 2. It gives you the best opportunity to get in FG range, get the 1st down and put yourself closer to TD range while simultaneously killing the clock.
Let's not act like the extra down is wasted time. Calling the play can be done as they are getting to the line and getting set. The extra time off the clock is time used while running the play. That means you're attempting to exchange time used during the actual play for yards which is the actual goal.
If we're playing this game of wasting time, how much time was wasted running down the field to get set and spike the ball vs calling the TO immediately? Especially if the very next play to Dez is converted and they use the TO then.
All of the time they spent running down the field, getting set and spiking the ball could have been used to set up a play and run it while saving a down. I'm sorry, but I'm not going to be convinced the spike was the best use of time or the down there. Thats what you do when you are out of TOs. Have a good day.