The point is valid, but not that helpful. Yes, our current system for finding useful apps is imperfect.
Sometimes when you invent a better mousetrap, the world doesn't figure it out and beat a path to your door. It would be great if the best ideas always win in the marketplace of ideas, but sometimes they don't.
And, if you can solve this general problem, you will be very popular.
I think social media can help a bit, but it's no panacea. (TFA noted that the voting for apps doesn't favor the best apps, and the voting system is arguably a form of social media.) Sometimes I hear about cool stuff on Facebook or whatever, but marketers try to spam us even on Facebook and its signal-to-noise ratio is degrading.
P.S. I live near Seattle. I went to Emerald City ComiCon again this year, and I arrived too late to get one of the spaces in the convention center parking. I wound up getting a good space using the BestParking app. So, it worked well for me the one time I tried it.
I found this app by doing Google searches for parking the night before, and finding the bestparking.com web site, which advertised that they had a mobile app.