That seems like a prodigious waste of everyone's time. In Japan, from what I've experienced, when there are not many people, you can get the door to close immediately after you get in, and it starts moving very soon after that. Imagine all the productive hours lost because of this.
It does not create productive hours. One person can achieve quite a lot with additional 2 hours. 120 different people with 1 additional minute wont achieve anything of value in that one minute.