This topic underlines one of the fundamental problems with the game today, IMO. It's always gotta be about 'efficiency' and 'maxed stats'. I can't remember this being any sort of serious issue when I started playing some 9 years ago. The only times we brought out calculators is to tally up troops strengths before a battle. Now, you're almost expected to carry a degree in economics to keep your regions running in peace time. And slowly, BattleMaster seems to be getting repleced by Sim Medieval Kingdom, Extreme Economics Edition.
In a way, I agree with this. We have been trying to make changes to simplify a lot of the game systems. However...
And yes, I exaggerate, but nobody can deny that the focus of the game seems to have largely shifted to "How do I keep my region at 100% stats".
I completely disagree with this. People are a LOT more relaxed about stats these days, thanks mostly to the change that hides the exact stats from everyone but the lord and knights of a region. No one knows that production is down by 2%, so no one cares.
What may be happening, though, are two things:
First, we don't have the armies of buros to take care of regions, like we used to have. There are fewer players overall to handle the load. So each individual person is probably more aware of the maintenance.
Second, I think that the estate tax system makes region stats more personal to each noble. Lords get a LOT more benefit when their production goes up by 10%. They are, therefore, more likely to obsess about it.
Having said that, I don't see a lot of focus or obsession about perfect stats, min/maxing, or perfecting the generation/distribution system. Region maintenance has been greatly reduced with the removal of estate points, and food distribution can be returned to centralization.