I had to do some digging to find out what in the world they're on about. Finally I found out what happened.
The winner, a boy, invented "a games controller which harnesses kinetic energy from thumb action using wind-up triggers". The next runners-up invented "smart curtains", a "smart fridge", and a "sleep monitor". This was reported
here.
In other words, the winner figured out how to get rid entirely of batteries and wires for powering controllers. But the feminists
insist that this competition wasn't about who could make the best invention or innovation; it's about making fragile little girls
feel better about STEM. From the MS article:
If that 13-year-old kid managed to turn the entire contest against girls and use it to hurt them, all just by entering his new self-winding controller, then he's smarter than everyone involved and deserves a freaking scholarship to MIT.