That's not justification for any argument, it's just an (unprovable) assumption about the current state of what people expect as standard. Anything that needs to have mass appeal can be assumed to do better when it follows the expectations that the majority of the audience have. I think your assumption is correct, but I don't think it proves anything significant.
20 years ago you could have argued, "How popular would this newsletter have been if it was posted to one of those ugly-looking 'webpage' things? It wouldn't be popular at all!" Therefore, the spartan early age of the Internet was a backward step for humanity because it was taking beautiful printed pages and reducing them to horrible pixelated text with almost no images and MIDI files playing in the background, and we'd be better off if people had been sensible and stopped posting webpages.
Also, while nitpicking, I think that Boubouille's native language is French. But I could be wrong on that one.