The captain-only requirement is an interesting one. While it makes sense that you'd want the more experienced pilot doing the landing, how do you get more captains? I.e. if a First officer can't land there with a more senior pilot ready to advise/supervise/take over, it would mean each person's first time landing there is when there's no one else more experienced to advise.

Someone said elsewhere thst it id not a heavily used airport. If there are inly a handful of flights a day I imagine that means there are only a select number of airlines arriving. If you were one of the select few airlines landing here, i could imagine you'd br able to schedule an experienced captain to be with a first timer when landing.

note: i am only speculating, and have no ideas of rules that prohibit two captain level pilots flying at once.

The first time they might do it under the supervision of a check airman, or at least an experienced captain.