Diseases are too oppresive even in vanilla right now. We are wairing to see if Paradox will hotfix them before changing stuff ourselves.

I don't think they're too oppressive... exactly. In Vanilla, building hospices in EVERY HOLDING is the only way to diminish the absolute nightmare they are.

My problem isn't how rare/not rare these are. My issue is how little control you have in interacting with it. Much like gaining things like the athletic trait, you're suffering from random chance. In a playthrough of mine, I had entirely coastal kingdom and only ONCE did I get the notification to close the ports. Once. Out of like 13 plagues. There needs to be more control, more features you can do. I'd like to see 'skills' give your leader themselves access to more decisions you can make. If I have 26 learning, please for the love of god let me close the ♥♥♥♥♥♥♥ ports. Or start a mass call for physicians. Or something.

To cite a completely unrelated game: Heroes of the Storm's Abathur.
Fun to play. Absolutely unfun to play against, because you don't "play" against him. You survive him.

You are poking at the wrong tree honestly. All of what you are talking are vanilla issues. We really don't care that much about diseases for the WoD, we are just playing with the hand paradox is dealing us.