+1
That's why manual POP conversion should still be possible (at least for some POP types) in dictatorship countries. This way everybody could have a bit he likes - by simply chooisng form of governement.
It's not exactly what I mean.
POP splitting/promoting was NOT good mechanics. Even if some of the extreme regimes of late game period should have option to force change upon their POPs (in game terms giving player manual control over it), it's still not something I consider critical aspect of making Vicky 2 good game.
What I consider critical is keeping players involved in whole economical and social changes process by keeping them busy with it - most likely with lots of policies to choose, events that give them choices, technologies with ability to "choose a path" and so on. Things that allow player to feel he is in control of things, instead of being just a distanced, limited in his ability to change stuff.
It's basically a choice between Populous and Majesty -like mechanics and more classic, "I can do whatever I want (in reasonable limitations)" approach.