Interesting vid. I don't know how many care sheets says that once their adult they don't climb. I've seen quite a few vids where there is a retic out of its enclosure and they shoot straight up.
I guess if you plan to have many retics it would not be feasible. But I'm trying to limit to two so I plan in future years to make enclosure suitable enough. I think it would be a great sight to
have an adult retic just resting above the ground in its cage.