This is why I've learned to present people with the concrete consequences and results of their service request. Especially if I get the feeling that someone does not comprehend what they are asking for.

"Your service request will result in X hours of downtime, as well as ireversible data loss between T1 and T2, and a reset of your system back to the state it was in at T1. All changes and interactions after T1 will be lost. Is this what you expect and want?"

Beyond a certain amount of service disruption or monetary investment, asking twice and making sure is prudent, not pedantic.