I wouldn't call it was a crisis but I do think Hearn got too ****y and made a mistake by booking Wembley in advance, he basically painted himself into a corner by making that commitment, prospective opponents could use it as leverage in the negotiations knowing Joshua's next fight had to be in the UK, against a big name and be on a specific date which means they could push negotiations to a set deadline to pressure Hearn. Hearn in the end scrapped that date which of course will have cost him financially, but he didn't capitulate in negotiations and found another option for Joshua. The thing is Joshua always has options, this Miller fight is likely to give him a record payday with the money flooding US boxing right now it makes sense to go to the US now. I'm not sure if AJ's stock has gone down, more it's leveled off and he's reached his peak in terms of fame in the UK, hence why the move to the US makes sense. But Wilder and especially Fury's stock has definitely risen due to the first fight, it may not have been the financial success some hoped for but it's raised both fighters profiles to an unseen level, hopefully that transfers to PPV sales in the rematch. Not sure if Pulev will be next after Miller. There's always the outside chance that the winner of Fury/Wilder actually come to terms with Joshua for a unification fight.