I agree with your last sentence - authors of this kind of pretty trivial package, even when they create their stuff with the best of intentions, would do good to point out the alternative to using their package, rather than selling it as the best thing since sliced bread (which, I'm hasty to add, the author of vue-axios is NOT doing). Authors doing so are benefiting their potential users by educating them.
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I agree with your last sentence - authors of this kind of pretty trivial package, even when they create their stuff with the best of intentions, would do good to point out the alternative to using their package, rather than selling it as the best thing since sliced bread (which, I'm hasty to add, the author of vue-axios is NOT doing). Authors doing so are benefiting their potential users by educating them.