I think you can get the DLC for much cheaper if you buy the starter pack, getting case game, TfV, WtT and the Balkan DLC (and 2 visual DLC) for only £8 more than the base game, so it’s not as bad to obtain
You didn't mention playing as UK using this DLC, would've thought that would be worth a mention. What can you do? I believe you can make forces using your puppet's templates and things like that? It's the only reason I watched this video and not even a passing mention.