VERY good video. "and just like that, you fall on the ground" Ok. I'll admit that I laughed, having the exact experience when learning to tie a rope to my treestrap the first couple times. First time, I boo-boo'ed both ends, second time, only one.
Same result, a gentle sink with butt-bump. No injury, just felt horribly stupid and embarrassed myself in front of the ants, spiders, and such.