Android apps that fail to validate SSL

The spreadsheet links to Vulnerability Note VU#582497 (http://www.kb.cert.org/vuls/id/582497). This links to additional information in CERT Oracle Secure Coding Standard for Java (https://www.securecoding.cert.org/confluence/pages/viewpage....). That states that a compliant solution example may be found in "Android Application Secure Design/Secure Coding Guidebook" (http://www.jssec.org/dl/android_securecoding.pdf). Which is written in Japanese.

"Wow, this file is really popular! It might be unavailable until the crowd clears. Try again."

Surely Google's infrastructure can manage to serve a spreadsheet!

It's down.

Yeah, I'm getting "This page isn't available offline. Connect to the Internet and refresh to view it online."

Obviously, I'm online.

So what specifically are they meaning when they say "Fail to validate SSL"? Does that mean they are not certificate pinning?