Have you played the game? Why is the offline (as opposed to single player, which I understand) mode so important to you?
If I may say this for myself:
Now, I know MMOs are popular, fancy and lucrative these days, but
don't you think that you are pushing it just too far with your MMO
only (tunnel) vision?
I am not an online multiplayer game player, never have been and never will be.
Sometimes i need to check the baby, answer the phone or door or do
some work. And now I can not even pause or save the game and continue
the battle in progress later. I want an immersive experience and that
doesn't include other gamers.
I also want to play the game where I don't have an internet
connection, and when the FD servers are down (or have been shutdown,
or FD no longer exists). I don't want to rent my game, I want to buy
it, no forced authentication, no DRM, no server connection. Reason ??
Except from constant bullying and incomodating your customers?!
Simply for long term assurance the player will be able to play the
game long into the future regardless of what happens to FD, without
wishing to sound horrible but if the company folds one day (as many
games studios sadly do over time) the game can still be played for
many years to come, and maybe even be modified and supported by the
community if the developer is no longer in a position to do it
themselves, there is many such games still being played today with
this exact scenario where the original developer & publisher have long
gone but the game still lives on supported by a dedicated community,
having a game which is solely dependant on the survival of either
makes me very nervous, history proves this sadly. Not to mention
server overloads, connection failures, high ping or simply lack of
internet access while we are on the trip or somewhere where internet
is not available.
So that is why offline mod is important for many players