Maybe you misunderstood me, ... I never suggested that AS airlines/connections "generates" traffic ... that would be too good to be true
If LCCs were supported (which officially was stated they are not) than they would be able to generate traffic. Because there is no traffic generation, they are not supported (yet). But with certain statements made by AS we might expect "passengers with a mind" or pax demand based on price elasticity.
What I actually wanted to say with my post is that I thought the demand was generated by airport type and location combination. I never meant to suggest that AS airlines can generate demand (and if somebody understood it that way that was not what I implied so please do not take such idea into consideration).
What I meant was something like that:
Airport X... has 10 million pax per year in real life.
80% domestic, 20% international.
Now we know AS demand is "more" than IRL demand in static pax numbers.
So let's say this airport X has 20 million pax per year demand in-game, and same domestic/international split.
What I suggested was that in such vase 80%@20MM=16MM would fly domestic, and 4MM would fly international.
Those 16MM domestic would be distributed among domestic airports based on bar-size (8 bar would get proportionally more pax than 7 bar; 5 bar would get proportionally more than bar, etc.)
In my supposition, this is how those 16MM domestic pax would be distributed. Same would go for international, if we know that 50$ of int'l fly to Canada, for example, those 2MM would be proportionally distributed among Canada airports base don bar-size.
When I said your supposition went a step further, I meant that you suppose that if we know that (e.g. above Canada int'l pax example) 90% of pax IRL travel to Toronto (because e.g. IRL Airport X to YYZ is a trunk route), that such route would have 90% demand of X-to-Canada in AS (or approximately same).
So the only difference between your and my supposition si that you put a specific route pair into equation, while I put airport size.
So let's say airport A is IAD.
In my supposition, Toronto would get the highest proportion of pax, followed by Vancouver and Quebec. E.g. Toronto could fill 5 flights, and Vancouver and Quebec could fill 2 flights each
In your supposition, Toronto would get most of the pax, because InRL 90% of flights are via YYZ, so in AS Toronto would fill 7 flights Vacouver and Quebec only 1,
That is the only difference in our suppositions, everything else is same.