He claims that C was designed by committee, which I can only assume is a defensive projection meant to hide that C++ was designed and is maintained by committee. He points out mplayer as an example of C code that is supposed to be good but is actually bad, which is a low blow. (mplayer's code quality has always been awful and this is well-known in the community.)
The railing against C++ object models being bad is similarly defensive, and I get the feeling that the author is deliberately trying to make people forget that pImpls ever happen.
C++ is an incredibly obtuse language, full of so many misfeatures and fancy whirligigs that it's difficult to be certain that even repeated reads through a file are giving you the correct impression of structure and flow.