> to his concept of China’s honor and global standing.

Or his sinocentricity and even racism (as in superiority of chinese people). There's been a long standing view in China about their own superiority of others, including all the way into the way they view their national pride as extending back further than any other civilization, even though external historians might view it more like several disjoint civilizations in a similar region... Kinda like how we don't call American history as starting when previous groups from contemporary russian crossed ice bridges to the Americas... We say it started in 1776 because it was a new major iteration of the regime.

I don't think this makes any sense, what you argue would imply that the external historians would say that Japanese history starts in 1947 or that French history starts in 1958, but I'm not sure if they nor people of those countries would agree with that.

The point is, there's a lot more to history than political organization. A continuous culture and language is a big part of why civilizations extend far beyond the current governing regime.