This two problems can be seen as similar, either way our phones are vulnerable – security pathes are as important as not having a backdoor in the firmware.
However, since now I was just joking about a Chinese backdoor in my phone, now I am getting more and more suspicious. :/
I've read the topic you linked, it heads nowhere, so I wanted to "start over" and maybe get more people interested in this issue.
If I understand correctly, the license (GPL) is forcing them to release the source code, but they can do nothing, because they are a Chinese company...
I'm a software developer, see my projects
if you're interested.