It's not a matter of manners. According to most style guides, after the first reference you can refer to people simply by last name. Writing "Secretary of State Ms. Clinton" in every single mention could be seen by some as pretentious and redundant.
I appreciate that you personally prefer what you call "conservative grammar" but that is your choice.
I read the Guardian online each morning, and I have noticed that
occasionally it does, indeed, have mistakes. By the way, "everyone"
in the world admits that there is one word that perfectly describes
British (London) newspapers: All of them (regardless of their politics)
are absolutely SCINTILLATING !!!