This was interesting but the title "From China, With Love" seems descriptively weak and unnecessarily confrontational, as if somehow the Chinese government were to blame for one router manufacturers backdoor.
* How much do we know about Shenzhen Tenda? All I could find in 5 minutes or so of research is that it's the result of the efforts of D.P. Quan to provide networking and enrich the lives of all people through, IIRC, excellence.
* China has a very well-established, well-attributed track record of attacking the tech infrastructure of the rest of the world, and does so through proxy organizations.
* A very blatant backdoor with minimal tech support value is something that is more valuable to a state than to a random tech company.
Chinese gadgets have backdoor - evil Communist country making a grand scheme.