Exactly. The idea that somehow the kicker is going to choke because he has to wait another minute is absurd. He's been standing on the sidelines anticipating for a long time...if anything, it allows him to line things up, catch his breath, think thru and visualize a successful kick.
"Icing" him is making him stand on the sidelines doing nothing for an hour. Giving him a chance to loosen up and feel like he's in the game is warming him up.
Would you rather be rushed into doing something? ...or given an extra minute to gather yourself and focus?
Exactly.