The way I understand it
all three things required for VRS
1) High ROD
2) Low Airspeed
3) Power applied( no power applied in auto so how can you get VRS) ???
P.S. Not convinced ground effect does much to reduce ROD at the bottom of an auto, surely it wouldnt have time to take effect, the extra lift comes from increase of rrpm (due to flare effect) which allows you to raise the lever to cushion touchdown at the expense of Rrpm.