That doesn't mean Muscovy won't have to fight Ottomans or Austrians or Swedes (very OP) or Poland (very OP as well). It certainly would. The balancing argument hardly works here. Do you remember how well Austria fought IRL? If not brave little Polen Austria would have been under heavy Turkish influence.Trashy +0.5 military tradition? I would take that on a lot of nations who have none of that, to be honest.
Not that many. There are 17 nations with core-creation cost cut modifiers (not counting the group ideas, so minus hordes, theocracies, Anatolian Beyliks, and client states. Even with those groups in, it's around 40 or so, I think, which is still a very low percentage of nations in the game), and Muscovy sits around the middle of that list in terms of "how strong is this." It's also a monarch point saver that saves the most important point type, so it's still really strong.
I don't see what use Muscovy would have for a navy. Navies don't win wars in this game.
Technically the +0.5 military tradition is a quality boost. It affects land morale, morale recovery, manpower recovery, siege ability, and general rolls.
What is this supposed to be about?
Nah. Culture conversion has some pretty nice effects, especially with the new rebel mechanics. Granted it's probably more relevant in multiplayer games, but it's still pretty alright.
That's a quote of https://en.wikipedia.org/wiki/Jean_Victor_Marie_Moreau who said that about Suvorov's Italian adventures. So there is little historical relevance in Austria having any sort of quality buff and Russia not. Why does Sweden gets tons of buffing events and Russia can not have one tiny combat ability/ naval forcelimit? Navies win wars, you are very much mistaken. Especially in AOW where WE is truly punishing. Baltics and Black seas are the places for Russian navy. Any objections to that?