There aren’t a lot of questions you can ask a person from the future that aren’t going to screw up the timeline. “Will I be okay?” is kind of one of them.
There are a lot of great online comics that take a huge amount of real-life time to get the plot through a few complicated weeks. I’ve seen this gag in more than one of them.
If the trick is working like it’s supposed to, they should be standing in a narrow cylindrical hole with clear sky at the top. Maybe they should push hands and feet on the sides and try climbing. Might save some jumps at least.
There aren’t a lot of questions you can ask a person from the future that aren’t going to screw up the timeline. “Will I be okay?” is kind of one of them.