...have you done T11?
It actually has something similiar - namely: Glowing platforms that used to require 4 people to stand on them to unlock the next way. All fair game as long as you were split up (the content forced you into groups of 4 and 4) but as soon as you had all 8 people together and had to do the puzzle with two platforms in the same area... oh boy, I've seen groups "fail" at that...

Not that this is a "bad idea" but I also dont consider it super intresting or anything like that... you cant bind it to jobs, in PotD you cant even bind it to roles, so it would become "Hey, everyone, stand in that spot for three seconds... okay, now we got MORE PotD to run, juhu!"