Analysts constantly talk in terms of "keeping it a one score game", but take an example wherre a team is down 14 late. Going for one twice, IF successful, means you need to win on the road in OT. That's the best case scenario.
Going for two gives you a greater than 50% chance of scoring 15, and a greater than 50% chance of getting 14 if you fail on the first one. It's new, and unconventional, so analysts can't wrap their heads around it. But it is the right move.
And as I said, from the TV analysts point of view, somehow coaches instead of playing the best odds to win, should play to stay within one score to keep viewers.