This is one of those movies that hurts to watch when you know a little bit about the subject matter. It's painful to watch characters being blatantly stupid.
The girls have harnesses, rope and carabiners. With a simple knot, the carabiner works like a figure-eight trigger. Which means you can descend not on your hands on a thin rope. And it is much easier to lift a person through the 'figure eight'. If the length of the rope is just a little bit not enough to reach the backpack - well, it is necessary to move the point of attachment closer to it: over the edge of the platform, over the remains of the ladder. You can lengthen the rope by attaching a second harness to it. You can sleep anchored to the mast without fear of falling. You can climb up to the light bulb with a rope loop around the mast - this is both insurance and load reduction. You could secure a backpack with a drone and charging equipment at the top and come back for it in two hours, instead of hanging on your hands the whole time (also impossible). You could even have one of the girls try to climb down a thick pole with a couple loops around it....
Let me remind you that we don't get to all that.
To save the drama, you could 'send' them off without equipment. Or show the reasons why a professional approach does not bring results (the pole is slippery, carabiners are missing, the harness was blown away by the wind when she took it off to pee, etc.).