That article is misleading -- it's really about C++, not C, and isn't really relevant to the Go compilers (which are written in C). I have Coders at Work and I think Ken Thompson was exaggerating a bit for the humor of it.
There is a "readability" process for C++, which is the thing he says he never got. Not much code is written in plain C -- the Go compilers would be an exception.
If I recall correctly, the book Coders at Work also talks a bit how the some of the Go/Plan 9 guys sat near to Bjarne while he was developing C++ at Bell Labs. They are not really fans :)