The quote, while probably the best way to address juvenile cannabis use I have ever heard, is still from a satirical cartoon. Subjectively, cannabis does NOT make oneself numbly content with being bored. What I found is that it makes things seem profound or meaningful or funny, significantly lowering the boredom threshold. You can for sure still be bored when high and I find the boredom feelings are actually amplified (like sitting in a huge line at a store with no screen/headphones gets really old really fast).