Could this difficulty in repatriation of funds be the catalyst that results in airlines being the first multinationals to reject the national fiat currency of the countries they serve?

KenyaCoin

bitcoin

Emirates slashes Lagos flight operations over $85m stuck funds

Fortunately for Emirates, they have already begun preparations for such a period of time:

*UAE's largest airline, Emirates, plans to accept bitcoin for payment | Arab News*
https://stacker.news/items/28006
https://www.arabnews.com/node/2079876/business-economy