The chain is about the statement "China is adding power capacity at a wartime pace—coal, gas, nuclear, everything" being disputed by the solar capacity being added. Whats being highlighted is that while solar is increasing its still a small % compared to the other types being added. If they add 800TWh of solar and 1000TWh of coal and 500TWh of other stuff they arent adding mostly solar like you keep claiming. We are not looking at % increases we are looking at actual increases relative to the total energy supply.
The 3 electricity sources mentioned in that quote combined together added less new generation in China than solar alone last year. Wind beat them all individually too.
The link you've given shows more coal energy being added over the last 5 years than solar. Looking at end of 2020 to end of 2024.