The article says 25% of Americans haven’t discussed any important matters with someone close to them in the last 6 months. Twenty five percent! That’s a huge number, much larger than the number of people in tech.
Of course, you can't just launch into such topics with new acquaintances, but to a degree the climate makes it hard to go from acquaintance to friend because everything is small talk. At least that's my feeling, which is why a night of drinking seems to be involved at some point when I make new friends.