That's funny, when I looked at the description on Canonical's page, I had exactly the opposite intuition. (I thought "wow, I bet the China-specific apps have no end-to-end cryptographic security, and I bet several are even proprietary".)

Maybe it's a glass-is-half-full / glass-is-half-empty kind of phenomenon.

Looking more closely, I guess the Lotus IM app doesn't support OTR (but neither does the official release of Empathy) and the Kingsoft cloud storage doesn't directly support client-side encryption (but neither did Ubuntu One).