I think the agent may have been referring to the latest selection criteria, not the actual points required to submit an EOI. Throughout the year, the people selected will have different minimum requirements for selection. This depends on the talent in the pool at the time of selection. E.g. if there's lots of people with over 140 points, there's less spaces available for people with lower points so the requirements get higher for selection.
Agreed with everything Zatexnz says re. agents!