The point is not that boredom is good but that the fidget spinner in your pocket conditions you to experience boredom in an absence of stimuli. To sit and contentedly daydream or watch the world go by is very different from the anxious ennui a screen addiction engenders.

In small doses, in the correct circumstances, Boredom can be the Necessity that drives new ideas.

Put another way, think of it as an opportunity for more conscious reflection and exploration. Like sleep, but not just 'run the garbage collector and predictive simulation pre-cache' routines, instead time to consciously consider and critically cultivate new perspectives on issues that might have been vexing the individual.