Files flattened to generic formats like JPEG or TIFF are obviously not an issue. Folks who do the work, save the flat file and then just use the flat file forever have no problem. The issue arises when we save layers [lots and lots of layers], many hidden, so that the same work can be repurposed when needed in the future. Common in print advertising.
Unlike your Airbus example, I absolutely expect to be able to continue to use a layered image file from a decade ago [after buying hardware/software upgrades as necessary]. And without paying Adobe every month whether or not I am actively working in Adobe apps.