In other words, COFACE is obliged to lend at the exact same conditions to Airbus as USEXIM can lend to Boeing for export of planes to a given country.
Also, export credit is only authorised for exports to non-OECD markets (offshore wind is the one exception, as far as I know: my first offshore deal was with the Danish ECA for export to the Netherlands...). In the long run, we're all dead. John Maynard Keynes
I'd think that the increase is caused by Airbus having made many sales outside of the OECD (Middle East, China, India, Singapore), then, and the airlines there no longer being able to finance these as easily.