No not directly , they just said some of are members may have placed too much expectation pertaining to this year (1975)
The reality is the WTS leaders at the time (late 1960's) such as F Franz just regurgitated an old previous proclamation made by C T Russell concerning mankind's existence of 6000 years back in the turn of the century (1900)
They even bullshited an actual month as in October 1975 to make it look like an actual verifiable date.
Why you ask ?
To enhance the proliferation of the WTS's own published literature by its devoted followers or duped exploited idiots.
Lies and deceptions are at the core of this religious publishing house as is its innate corruption.