I have watched Morten Oen's videos and think he's doing great. I'm a fan. This video is showing the effect of a relatively tiny pressure reduction in a relatively expansive chamber. This atty has a much smaller chamber volume with the same, relatively not so tiny anymore, pressure reduction. The comparison is apples and oranges.

Yes moving air must have momentum but enough to overcome the vacuum coming from this drip tip the moment it exits out of the top cap holes just a few mm below it?