I don't think it promised less work. In a vacuum of 10 people it now enables less than 10 people to do the same amount of work, assuming there is a limit to the amount of work to be done in a work day.
AI allows me to do more work within the same time, not less work given I work in a field where the amount of work doesn't seem to have a limit.
AI allows me to do more work within the same time, not less work given I work in a field where the amount of work doesn't seem to have a limit.