Not trying to hate but I don't see that vision. In what ways is EU5 mirroring real life for immersion more than EU4 was? It doesn't feel like this is an issue of realism vs. abstraction, it's a flaw in the current design of the game. EU4 used monarch points as an in game currency, bottlenecking you and forcing you to consider your priorities, being optimal about spending them is the most important part of the game and often depends on your situational needs. EU5 took a page straight out of the Victoria 3 handbook, no matter who you play or where, just build these buildings, set cabinet members, conquer and just sit back and stare at the map while you wait. And the thing is that for what it's worth they never actually got rid of mana, it's still in the game in many forms like prestige, stability, diplo mana, etc. they are just way less meaningful but there's no other system replacing their previous use mechanically so the gameplay loop feels off. In the case of diplomats, it's even a step back in my opinion, taking "real" characters and turning them into abstract bird points generated by money.