I worked for Adorama Rentals for a year and half.... I can confirm that these are actual customer experiences.
I had the same exact reaction.
I did it to help hide the rush job I did on the head removal ( remember only gave myself 2 days to get this done). Also, while I can certainly agree about ruining the illusion to an extent, I think the fact that you are watching this on YouTube pretty much means you are all in that what you just watched was staged and filmed from the beginning. It's really a matter of personal taste. I happen to like it in this case.
Oh, someone had an extra salty breakfast this morning.
Of course its sexualized, their lady parts are touching other parts of people! Totally sexual, lol!
Something to note from someone who done fight choreography for film and been practicing Martial Arts for years.... None of the moves in fighting films are real. All of them, punches, kicks, blocks and takedowns are designed to look good on camera and to be safe for the on camera talent to perform several times over. Its the illusion of pain. Having said that, they are all rooted in actual real world maneuvers that do work, the main difference being when you do to an opponent in real life, its meant to take them out for good. So yes in principle, the between the leg takedown is an actual and if executed properly, completely effective technique. It just doesn't look as clean as presented in the movies.