Even KSI vs Tommy Fury did more numbers in the US. I bet it did fantastic numbers in the UK though. Since it was in Saudi the PPV numbers were irrelevant. I think there will be a lot more interest if and when Ngannou next has a boxing fight.
I think you are right @Beale Tyson fury is a shot to pieces old name fighter. The question becomes, is he shot to pieces enough or old enough yet for hearns junior to stop ducking and roll the dice for joshua? History has taught us not.