Yeah, marketing BS. They do seem to have a larger than usual number of customer returns and/or dented boxes that start to be displayed the week before they put this extra discount for those out there. But the regular inventory stuff is no more than a regular sale, and usually not the lowest price offered through other sale periods.
(just noticed that the torque wrench i'm looking at ("liquidation sale" item) which is out-of-stock at my nearest HF, has a status of "Back In Stock Soon" at that nearest HF, so no "need" for me to scour the other HF's due to a perceived case of FOMO!)