I doubt you're their target market for renting a country. If you can drop 70k for a night without breaking a sweat, feel free to tell me I'm wrong.
Given this is a partnership with Xnet, and:
>Rent a Village by Xnet partners with these destinations to transform them into highly customized settings for events, corporate retreats, conferences, and more.
I imagine this is more about "events" than a single person renting a country so they can sleep in it for the night. But that, too, is a possibility, if they wanted to just so they could say they did.
"An island", not really (usually). "A village" or "an entire country", that's a bit harder - people live there. The location's purpose isn't entirely to be rented. Tourism, absolutely, but not temporary ownership.
What exactly is your question? I admit I can't imagine spending $70k/night on entertaining my guests, but Googling for "airbnb liechtenstein" or variations shows that this has already got them a good amount of press, including e.g. TechCrunch. If they're lucky, and good, they may even get mentioned in the trivia section of a big newspaper.