It's also a cold, why would they bother curing it? It goes away by itself in a week. Viagra was also invented by accident, it's not like some lab was spending massive amounts of money to cure ED.
It's great from an aesthetic perspective, but as mentioned it seems like it would be on too big of a time scale. Even vines take a few years to thoroughly get attached to a wall and become substantial. The bench is really neat though, and probably fairly practical. And things like the playground they mentioned would be too. But that's what it is, something interesting for a park or courtyard or garden, not for building a home.