It seems safe to say that the majority of Airbnb use now is not a delightful experience of being hosted in someone else's home, but whole-apartment/house rentals or other circumstances with not much interaction between host and guest, feeling very business-like. No? I don't it's common to especially enjoy it as an experience anymore, it's just a way to make money or a way to find a nice place to stay at a good price.
If that delightful hosting experience is what inspired them to keep going... it's still not what the company mostly ended up providing to the world. If we were to weigh the pro- and anti-social aspects of airbnb, that pleasant human relationship between host and guest would barely weigh on the scale, because it's mostly not what happens there anymore. The founders don't seem that concerned about that though, do they?
So what do we take from all that? It seems odd to me to highlight that aspect of the founders initial motivation without even mentioning whether that's what the company actually does now.