Although much changes with technology, much remains the same. People have had the technological ability to communicate solely through telephone/computer for many years which easily beats face to face communication in terms of efficiency in a geographically diverse group, but people are still shelling out money for plane tickets. There is something to be said for the ability to chat to someone about a ball game without speaking and hearing through a machine.

Although I'd say human to human and human to computer communication are very different, I'd agree with you that some languages are objectively better. There are ancient tribes that don't have words for numbers above two. Esperanto seems to be one of the easier languages to learn, at least for those already fluent in european languages. But when it comes to adoption, culture and ubiquity seem to be the most important factors.