The same thing went through my mind when I watched the video.
My gut feeling is that wont have a bearing upon the ones that decide to fly out the front though. That's one of the best things about my Lee Classic Cast press. The ram has a hole down through it for the primers to drop down into and a hose barb on the end to attach a piece of pinched off aquarium hose to. The primers collect in the hose.
After trying my brother-in-laws Frankford Arsenal hand deprimer, I was so impressed that I went home and ordered one for me. Now I can deprime anywhere I choose. Great for time spent in the presence of the Queen, while she watches a chick flick. I get attendance points and the tight fitting ear buds save my mental health.
Hoot