I think the starting point here is that international humanitarian law already gives protection and already says that when you're operating in an area where there are armed groups, whether deemed terrorist or otherwise, and even in situations where you might have to pay these sorts of administrative fees, landing fees or whatever it might be, this kind of activity is authorized because the humanitarian imperative exists and we need to be able to respond to it.
On April 19th, 2023. See this statement in context.