So going to a service would resemble not much more than a 'do as i say or else meeting'?
Not all the time. They might tone things down for their Sunday 'public talks'.
It's a "carrot and stick" approach. They have to use both to be effective.
The carrot = endless promises of Armageddon (this world's end) to be followed by a wonderful paradise earth inhabited only by Jehovah's Witnesses.
The stick = demands to comply or do more, otherwise you might not be saved.