His problem is his insistance on using asmap. It doesn't make sense for this use case. Using asmap means everyone with Comcast as an ISP counts as 1 node. Everyone on Spectrum, just 1 node. It's ridiculous.
What a lower percentage with asmap would indicate is a lack of diversity among Knots nodes. Which would make sense, since the bad actors in Core stole the Transifex repo a year ago to prevent people from translating Knots... So non-English-speaking countries would understandably be underrepresented at this point.