Joshua does not have any belt in his possession, so that makes him desperate, he is no longer in a position where a fight is a high risk for him, anyway, he already has 3 defeats and has nothing to lose...
Whyte is shot. Doesnt even have the power now. Last proper ko was 5 years ago (I'm not going to count him stopping a recovering from covid, can barely stand Pov). That's why Hearn wants this. Hopefully will get a better fight. But doubt it. Could be a barely top 50 guy like Demsey McKean.