Might be a good option. Not sure how comfortable it would be though, or how well it would conceal while sitting down (if you didn't have a desk or table to help conceal that bulge). But worth trying, and a good option for when you can't use a jacket or untucked shirt to conceal.
However, it would require more practice than most holsters, and in the video he always used both hands to draw. I'd like to see how you draw with that holster with only one hand, since there are a number of situations where you wouldn't be able to use both hands to draw.