People using Ruiz as an example of what Wilder could do to Joshua aren't making any sense. Ruiz, with his short arms and hooking style was using a different shot selection to what Wilder has available to him and also fights in the pocket the whole time (because he has no choice, but to) whereas Wilder is teeing his shots up and setting up the stupid overhand shots from miles out with very little volume.
The issue for Joshua with Wilder always was, and still remains to be, that the speed and torque at the end of a Wilder looping shot in combination with Joshua's lack of head movement and reflexive countering was a recipe for a tremendous, clubbing knockout unless Joshua could shoot out snapping jabs and straights down the middle before Wilder could get his clumsy, but devastating shots off.
It wouldn't be some spectacle of boxing, but a KO could happen at any time, which would make it a 'thrilling' watch. The only thing the Ruiz fight changed was the amount of money any so-called super-fight would generate and I think it serves all 3 them right that a blot in the ointment has messed up the money for all 3 of them. All that posturing and pussyfooting has cost them 100's of millions of dollars and made rematches and trilogies a lot less lucrative than they could or would have been.
We'll get to see what Joshua's made of in the rematch - all that wealth may have changed him. One would hope the humiliation of such a defeat lights a fire under him and gets him to the best version of himself he can be. I think all 3 of them, assuming Joshua gets the belts back, will want to expedite the process of getting fights made, if not to find out who is the best, then to generate as much money as they can before calling it a day. They all need each other; I bet Wilder's tweet was more him thinking 'nooooo! my moneyyyyy!' than bad blood toward Joshua as a human being.
Hopefully Ruiz is the catalyst for the HW division now as his interjection has taken a lot of the power and posturing away from Hearn and I think any of the 3 camps will be more willing to get the fights made - Hearn has to gamble on his cash cow, too, as another loss (especially to Ruiz) will be absolutely financially devastating, but even if he gets the belts back, the only real option now is to go after the blockbuster fights as AJ verses bums is just not going to cut it anymore as his aura has taken a massive knock with that "0" being wiped out in such an emphatic, drawn out manner.
