The maneuver in question is not an autorotation, therefore VRS is entirely possible. For a drop from a hover of less than perhaps 500 feet, there would only be only a powered descent (albiet a very under-powered powered descent) as the rotor rpm serves as the "engine" power.
This is of course a recipe for disaster, as the ROD will be near infinite at "landing".
I have done intentional zero knot descents that passed slowly through 1000 fpm then through VRS and then to 6000 fpm autorotation.