I do something similar to this (based off of this clip actually) where a selection is reversed twice in the deck and then left sticking out and held while the rest of the deck is reversed, much like your clip.
It's a neat idea - but it's not a full routine. Give it context and you'll have something that can floor people.
What RikAllen is saying is that this trick, while well performed, is not at its bets when performed alone. You should try to build a routine around it, using other inversion effects to build up to it like David Blaine does in the video he linked.