There is a lot of evidence that close quarters, inside contact is very risky for transmission; every country in the world is operating under that assumption, indeed most are passing laws based on this. There is zero reason to believe that elevators ... both close quarters and inside would some how be an exception.

You've claimed that elevators are an exception to the established guidelines without evidence and are now claiming that that other, well evidenced, claim some how needs additional support to be applied to elevators.