Oh, absolutely. I wasn't trying to claim that the shift in FPSes to primarily-PvP didn't happen until the ubiquity of always-on broadband made internet matchmak

Oh, absolutely. I wasn't trying to claim that the shift in FPSes to primarily-PvP didn't happen until the ubiquity of always-on broadband made internet matchmaking a fully viable thing, just that even in FPSes the roots of the genre were single-player, and even included some fairly prominent story-heavy titles.