And if you scroll down the page you will see that validation rates are significantly higher in some countries in Asia.
Routing queries through a centralized resolver service that happens to do performative DNSSEC checking is not the same thing as "using DNSSEC". Rather: go to any list of the top domains in any Asian country and take them to "DNSSEC-NAME-AND-SHAME.COM" to see if they're actually signed. Yahoo.co.jp? Rakuten? Google.co.jp? Nope, nope, and nope.