They are expecting 2 millions for that fiscal year, it's not like they expect the game to stop selling after that (especially if it's on PC too). The "casual hate" is nonsense, SFIV was pretty popular with the casual crowd, there's no hate, if Capcom won't be able to make an interesting and long offline experience for SFV then it will only be Capcom's fault (see what happened with SCV and the rushed barebones offline), they know what the casual audience want, they have plenty of examples on how to do a meaty offline experience, just do it.
Casuals still bought MKX despite pre-order characters and a season pass, because there's still plenty of shit to do with the game, that's what counts at the end of the day. If Capcom is only going to make a standard story mode and some combo trials then good luck trying to reach even 2 millions. Or just go F2P and hope it explodes with the PC crowd.