Observador,
That is how so many major changes have happened. 1878 being the year of Christ's enthronement. 1874 seeing the start of the parousia. The Society no longer being the Faithful and Discreet Steward, but shifting this title to all remaining partakers.
Succeeding generations will never know the old doctrine existed unless an apostate show them, and older generations of JWs need apostates to explain the "New Light" to them. Isn't it funny how dimly new light "shines"? It is as if it was "New Dark" instead.
Respectfully,
AuldSoul