... but we're gonna have a bugged, unfinished game at release, yes
If there is no immediate MP, then players will have time to become proficient at the game first (but hopefully not for too long).
If there are bugs (there MUST be bugs, it's a program!) then the much-vaster-than-beta-test community will root them out, while at the same time learning & enjoying the game (hopefully the bugs won't be game-breaking for most).
WE ARE THE PIONEERS!
Later adopters of the game will not have the ease we will have in being familiar with the game.