In general? No, of course not; I feel that would be an absurd claim to make.
But as an international language? I think having everyone learn something that is comparatively easy to learn is certainly more fair than having most people learn something that is comparatively hard to learn and understood by others from the get-go, thereby giving the latter an unfair advantage. And I feel that being more fair in this regard is indeed morally superior.
(Then again, that might just boil down to one's own idea of morality. But I feel like this one shouldn't be all too uncommon, and the claim is entirely reasonable in its terms.)
But as an international language? I think having everyone learn something that is comparatively easy to learn is certainly more fair than having most people learn something that is comparatively hard to learn and understood by others from the get-go, thereby giving the latter an unfair advantage. And I feel that being more fair in this regard is indeed morally superior.
(Then again, that might just boil down to one's own idea of morality. But I feel like this one shouldn't be all too uncommon, and the claim is entirely reasonable in its terms.)