I haven’t really noticed a difference in time at any of the ports I’ve been to. I’ve been to Port Canaveral a few times, New Orleans once, Texas once, Miami once, and Vancouver. If I was to spitball a projection of how it helps, I would guess that each cast member that is entering in families might get an extra family through an hour??? And if they have seven tellers, that would be seven more families through the terminal every hour, it would help with the big picture but it’s probably not gonna be felt by us.
And they might have taken that extra time and cut back on one cast member checking people in.