If I'm reading this correctly, I think the article is citing 'typical' (i.e. what other people said) idle power consumption measured at the wall for similar N10

If I'm reading this correctly, I think the article is citing 'typical' (i.e. what other people said) idle power consumption measured at the wall for similar N100 PCs. TDP something different: it is typically a term to describe the amount of heat that needs to be dissipated from a chip while under load. While it is a number that is closely related to the power consumption, it is neither the same thing, nor would those numbers ever cite the total consumption of the system. (because, for instance, most components in a computer are passively cooled)