Interesting that you can use this for two-man rule...especially since this api is real-time. I'm having trouble thinking of scenario where I would use this feature at my company, but cool nonetheless
You just have to think of it as a sign-off rather than an approval, and you can quickly come up with many use cases for it.
For example, imagine that you are responsible for rolling the build this week, and you need to get a sign off from an assigned person on each sister team, confirming that they tested their feature area before you push the trigger and roll the build. You can either email and try to contact each person individually, but the cleanest way to solve this issue would be to create a multi-person approval, where you can track the status of a sign off for each sister team in real time. Approval serves as an affirmation in this scenario.
