Great fake, you had to have someone at the other end to control the drone (you obviously had to have someone there to record as well) as I am sure the signal would have been severely degraded as you approached the ground. I also think that the Mavic would not fly very well with that weight attached to the bottom, as soon as you start flying (conveniently not shown, only liftoff and descent shown) that weight is going to pull the Mavic around something fierce.
Maybe someone else will fall for this but not me.
I am sure others will comment that I am taking this too seriously or something but I am just commenting as some people on this forum are sure to think this is possible and try for themselves and cause more problems for the hobby.