Their dlc's have always been overpriced, but there hasn't been one that actually broke the game in years.
Well... Eu4's newest expansion, "Leviathan", has actually broken the game, it is actually unplayable. And the worst part? Even if you don't have the DLC, you're still screwed because the free patch that came with the DLC also breaks the game.
Oh, and also this dlc is 20$.
So please shit on paradox interactive in this thread.
The TNO mod shows perfectly well that you could show Nazi Germany in all of its ugliness without having a sizeable Nazi fanbase. Then again, TNO is quite a bit different in both tone and formula from vanilla.