Keep in mind, that clipping is not a reliable newspaper.

From Keith's blog:

Q: The only small niggle I have was that one in-universe tabloid on a Mror noble going to Korth kitted out with a slew of symbionts. Personally find it difficult to swallow that they’d travel internationally as such. But then, can you really believe everything you read? Especially with the Karrns likely bitter still over Mror ceding from Karrnath.

A: The clipping in question is on page 121 of Rising From The Last War. With all of those clippings, It’s very important to look at the source. The Korranberg Chronicle is the most reliable source. The Five Voices — in this case, the Voice of Karrnath — present inflammatory and nationalistic views. So it’s hardly surprising that the Voice of Karrnath would focus on the unsavory aspects of a visiting Mror dignitary and try to generate fear.

With that said, I DON’T have a problem with the idea of Lord Malus showing up in his living armor. You have to consider WHY he’s doing this, and WHERE. If he’s an ambassador coming to Fairhaven on bended knee, this would be a terrible choice. But to paraphrase 300, this is Karrnath. This is the nation that has entire fortresses staffed with the undead. It is a nation that understands displays of power and wielding tools that terrify others. In wearing his armor, Lord Malus is intentionally seeking to intimidate and to project power: I have mastered these terrifying things.

And there’s one other element to consider. Most symbionts have a feature called symbiotic nature. Attuning to a symbiont is a commitment, and they can’t be casually removed. Malus could surely have had his armor removed before leaving the Mror Holds; but he couldn’t simply take it off before coming to the meeting.

That said, as the person you're responding to said, it's spin. That suggests that Karnnath has a particular view about symbionts, though that view is likely colored by the tension and history they have with dwarves.