You got it right.
If the original article is based on facts and the truth, then there
would not be any defamation to start with.
The trouble is, most of the time, it is just statement (kopi shop
talk) with out checking of fact that is being presented. We expect
to fish out truth from "somebody or organisation" affected. Instead
we get defamation suit in return. We are asking for it.
These are just my opinion.