1. Teenagers can build cool things too! We need more kids interested in STEM and females are underrepresented, so these "puff" pieces are great inspiration for the next kid who happens to come across it.
2. All that was needed for her solution was a cheap FLIR camera connected to an iPhone 6, meaning you don't have to be rich/VC funded to experiment with hardware solutions.
This is Smithsonian Magazine, not the Wall Street Journal. I say bring on more stories like this!