There is something else as well about the turbulent airflow from the main rotor. When hovering in zero wind it takes the shape of a tube that goes straight down until it dissipates. Whatever is inside that tube is a bit like in the eye of a storm and doesn't get affected that much by it.
However when facing the wind this tube gets pushed diagonally backwards as it goes down. If the rope remains in its center it won't be affected much by it, which is what looks like was happening in this video in all three occasions, even with the weight or parachute, likely because the turbulent flow zone dissipates before any part of the rope has a chance to get out of its center to interact with it.
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(Short Spike)
There is something else as well about the turbulent airflow from the main rotor. When hovering in zero wind it takes the shape of a tube that goes straight down until it dissipates. Whatever is inside that tube is a bit like in the eye of a storm and doesn't get affected that much by it.
However when facing the wind this tube gets pushed diagonally backwards as it goes down. If the rope remains in its center it won't be affected much by it, which is what looks like was happening in this video in all three occasions, even with the weight or parachute, likely because the turbulent flow zone dissipates before any part of the rope has a chance to get out of its center to interact with it.