Actually there was 1 thing related to pax allocation that I found odd. I think it's the same in all of the new universes, but was just more noticeable in NAC.
The miniplane penalty seems to be much stricter once a national border is crossed, right? So, for example, JFK to YVR (US to Canada) receives a miniplane penalty on A320/B737, while JFK to SFO (domestic) doesn't, even though it's longer, and JFK to HNL (domestic, low demand) also doesn't, even though it's almost 2x as long.
This was challenging in NAC because most of the Very Large aircraft production lines shut down due to inadequate orders (too easily frequency raped by miniplane).
I had a base in SJU, and mostly flew <2000 nm routes, because to go beyond 2000 nm, I had to decide between adding a fleet type of Very Large Aircraft (which was later not an option either because they all shut down), or taking a severe miniplane penalty, because although SJU is considered a part of the U.S. for basing purposes, it is considered an independent country for miniplane penalty purposes.
Is all of the above as intended?
Or would it make more sense to have the miniplane penalty reduction/flexibility apply on a continent basis (i.e., less penalty for long routes within a continent), rather than a country basis (less penalty for long routes within a country)? In real life, I think narrowbodies are usually flown on flights from Canada to the U.S., just as they are from the Eastern U.S. to the Western U.S.
And having the lighter penalty / more permitted range apply within a continent would still prevent people from abusively flying miniplanes across oceans to instantly kill the widebodies (while paying much lower staffing costs, etc. because the game assumes that smaller planes fly shorter flights and hires staff accordingly). And it would be similar to the pricing rules for International / International LH in that the cutoff depends on whether you cross a continental zone or not.
What do you think?
If you think the above change is too dramatic for full game worlds, maybe it could be implemented in just mini challenge worlds, where widebody production lines shut down fast.
But I think it makes sense for full game worlds as well, because of, for example, the U.S. to Canada flights on narrowbodies in real life.