Eh, they're spamming it. A lot of these videos are from a semi-amateur competition.
Within vogue, the death drop is one of the showiest moves you can do, and it's the most difficult of the "modern" vogue moveset. Even sloppy death drops are hard to pull off (my knees ache just looking at them), but you get more props the more pronounced your knee bend is, and the flatter you land on the ground. Look at the video I posted of Deshaun to see pretty much perfect death drops. Flat as a board every time.
Obviously, seeing as it's the "big move" in vogue, you have a lot of amateurs who spam the shit out of it.
There are also forms of vogue that don't really incorporate death drops. From the same competition, here's the final of the New Way style (which involves more precise movement, poses, and extreme displays of flexibility) between Voodoo and Karina Ninja. No death drops here:
https://www.youtube.com/watch?v=BCDWMX_Gu6Y
Also? The girl who wins that (Voodoo) looks like she's barely 12 and doesn't even break a sweat.