There are always corner cases like (1) a Japan-based non-PR/citizen professional who's on a work trip to the US who needs a couple days to get back to Japan, or

There are always corner cases like (1) a Japan-based non-PR/citizen professional who's on a work trip to the US who needs a couple days to get back to Japan, or (2) someone's partner who again is based in Japan but is currently in the US traveling temporarily for work/family/leisure. Typically spouses of citizens/PRs can tag along through travel restrictions but a romantic/domestic partner will not have this avenue available (also spouses traveling alone without their PR/Citizen partner)