many have nailed this on the head. It’s dead to us. The next few paragraphs then go on to describe Facebook as essential social plumbing. I think an FB product manager would be delighted to hear that Facebook is "dead" in this way. This is precisely why the most successful social network of its generation was built, first and foremost, to be a platform rather than a cocktail party.
So were Yahoo and AOL. If specialized apps start to show up, people may start ditching FB altogether.
Like your parent said I see FB as "essential social plumbing", not the most glamorous or best but a necessity and way to connect to people before you go "off FB" to another app or SMS to chat/interact. The only reason I "post" to FB is b/c my Twitter posts to FB. I rarely use Twitter except from trying to get companies attention after having them ignore support requests or not having any other support at all. Multiple times I've used a websites/app's built in ticketing system only to get no response. A pissed tweet a couple days later and I've got a response within the hour... The squeaky wheel...