So you can sell the game at a loss meaning once your sales have dried up you haven been able to make a profit or even cover your costs. And you can "sell at a loss in one country" meaning you're willing to let that one country not cover its share of the predicted income (meaning if you sold everywhere like that you'd go bankrupt fast) just because you can get more market share. And some other region will compensate.
I'm sorry you would rather nitpick on the wording instead of the point being made, which I'm sure I explained pretty clearly. And this already exists in practice so obviously the logic behind it is sound.
> But those are heavily if not completely independent of the number of users.
So what if the number of users/sessions hosted increased by 3 orders of magnitude, right? The databases, the game servers, the login servers, the web servers, security, management, and everything else that also has to be geo-located will just balloon to accommodate the extra users or markets at no cost as all IT infrastructure tends to do.
Again, here are some random numbers from almost a decade ago for a game that's probably far less demanding than anything today [0]. Having x US servers vs. having 3x US servers and 5x Asia servers is not quite "independent" of user numbers and location.
[0] http://twvideo01.ubm-us.net/o1/vault/gdceurope2011/slides/Ma...
Yes, there are lots of other costs for running a network service besides bandwidth. But those are heavily if not completely independent of the number of users. Your anti-cheating effort costs about the same regardless of whether you have a million users or ten million users.