Sure. Even if we assume that Joshua will be lucky and will be able to defeat Usyk (in super heavyweights there is always a chance for an unexpected knockout), this will not change the fact that in the next match against Fury he will be an obvious underdog and such a fight is unlikely to cause a lot of excitement.
Indeed Joshua have lost his face in the crowd during his fight with Ruiz and also against Usyk in their last match.
AJ changed his coach as he is looking to be better in the rematch, and that's another thing to watch out as he is serious, and I think he has a chance here but no chance for Fury.
I kinda excited to watch Usyk against Fury tho, these two fighters is much more entertaining to watch.
I do, I still believe that he will win against Usyk, he was the bigger fighter (though not quick enough) and he can impose his length if he'll learn a new technique under the new coach.