Even that analogy is overly favorable to Ward, since a more accurate one would be Sliscus rocking around Terra and doing lines off the Emperor's bum, and no one being able to stop him because he's just that cool.
As it turns out, Shadowsun and Sliscus have large armies, which is a bit of a help when it comes to conquering planets or turning back Hive Fleets.
We understand that much of 40K fluff is ridiculous, that it's space fantasy, and all that, I'm sure. That doesn't mean that it can't be too ridiculuous. Draigo's fluff is too ridiculous.
If you want to talk obnoxious, making this argument personal is obnoxious. Sure, some people insulted Mat Ward's writing ability--they weren't calling him a bad person. You, on the other hand, have called anyone who did so politicians, which is a pretty serious insult and does imply that they are bad people.