Its resources, of course focus is on economics.
Just trying to give ideas how they can expand that part of game for future expansions.
I like the game balancing in Paradox games, I cannot say the same for Amplitude´s games. They are rather unbalanced, so I´m not very keen on getting elements from their games into Stellaris. Maybe it could be nice as a bonus on a smaller scale like 2%. Not 20%, and then again you have to ask yourself how much impact it will really have on the game.
There are a lot of other things I´d like to see first, maybe Trade and Espionage.