Why not? It used to be that Jake only fought people he knew he could beat, taking a moderate risk with Fury who he maybe could beat but was definitely not going to get hurt fighting. Eventualy he went to the top of the mountain and got wrecked. So at least we know he'll fight anyone. Having balls isn't the issue, if anything, the guy is kinda nuts. Fighting JCVD (not gonna happen) after Joshua would be crazy and hillarious.
Funniest thing is Usyk has been eyeing a MMA match vs Jake Paul after he retires. This fight would be huge and I hate to admit, kinda interesting.
If that fight happened, Jake Paul's career would be the craziest in history, by far.