As a digital nomad, I'm guessing you would have been to relatively low CoL places like Bali, Thailand, maybe Eastern Europe or LatAm. You have to remember that your experience as someone from the global north, earning in a strong currency is very different from a local person there.
Not that i disagree with you that rankings are flawed but by the same token, Canada /is/ in the top 5 for many people from low standard-of-living countries