If someone told you that they were having luck force feeding their ball python cooked shrimp would you need to see a study to know that it was wrong?
I don't think that it's about condemning anyone ... from what I can tell it's about decades of accrued communal experience in ball python husbandry versus a couple of youtube videos. Seems like a no brainer to me ... but then again, I'm just a simpleton with a couple of snakes so I'm probably way off base on this one.
-adam