Just looked at both videos and I have done both of those actions in the past with no injury or death to myself, so I don't know if those were in the Alpha/Early Beta stages or what..... but that has never happened to me, ever in RO2.
The only time I died from falling in RO2 was Red Oktober Factory, when us Russians capped the first objective and I was near the radio in the building.... I decided to head out a door that was on the second floor that lead to an opened area of the building with a broken floor.... and a couple of guys were following behind me.
I looked down and figured, nah.... I can make that jump..... jumped and then fell to my death.
I then got a message from one of the guys behind me saying, "So Prax, that's not a good spot to jump from is it, lol?"
I responded, "Nope.... I wouldn't suggest it."
It was a tad funny.
But in the OP's two videos, those falls are something I remember seeing in RO1 and the Mod.... but I've never seen that happen in RO2, nor have I died from doing those exact same things, let alone get injured.