But getting it all at once is like peeking at your Christmas presents early: you think you want it, but it spoils some of the fun, the eventy-ness of it, and the social context created by a shared timeline (the so-called "water-cooler effect").
Anyone who doesn't want that experience can still wait until the whole thing is out, probably just a few months, at which point it will still be available in the binge library, presumably forever. (I know some who prefer not to start a new series at all until the entire thing is finished, which is also okay.)