You have a few friends != large number of people will do the same.
I, too, know people who met their future spouse online. However, after meeting online, they invariably meet in person before getting married, and then live together after getting married. Even the most plugged-in exemplars of the metaverse can't escape from the desire to interact outside of it.
So while I agree with your point overall, I think here on HN we're too quick to dismiss people's personal stories.