I've watched this clip on Youtube months ago, watched it many times, and every time I repeat it, I always laugh on how dumb that robber is.
Maybe his a robber who doesn't have a smartphone at all, or any device that keeps him updated on what's happening around him. Maybe he doesn't know what's crypto at all, or how to access it etc. Maybe he's a robber from a faraway place, just went there to rob.

Kidding on the last one.
I guess it will not affect Mr. Beast at all if the robber manage to got his private keys because of how much he's worth right now. I mean he's one of the most popular, if not the most popular Youtuber right now, and correct me with this one, but I think that he's earning 7 digits on all of his Youtube channels, but spending 6 digits on all of it.
I guess it's good for my safety as well that nobody here in my community knows about Bitcoin or cryptocurrency at all because that lessens the chances of me getting my Bitcoin robbed. This incident teaches us to always, always keep our keys in the safest place possible. Not all robbers are like the robber who robbed Mr. Beast's things.