Well... if you read up to that point you would also have read "is the key to the future for both children and adults alike" - and you've only addressed the kids bit. I think the silly craze has died down a bit in the UK, but a few years ago we were subjected to such excitement as the news highlighting activities like c level execs doing coding classes in their lunchbreaks - 10 o'clock news?! This may have been about the same time as the BBC microbit was produced - I've heard nothing of that recently either. Easiest way to confirm it was a silly craze is to watch peak daft hysteria disappear into the distance.