Yeah Wilder wasn't tied down or locked in with anybody, the DAZN deal he was offered which he said was 120 mil was only for 3 fights though, 1 was for Breazeale who he was fighting anyway, he would have been given 20 mil for that and then the 2 AJ fights, the first fight and then the rematch which his team said they wanted a 2 way rematch clause, they had previously accepted a 1 way 1 they said. They even said he could have just done a deal for the 2 AJ fights if he didn't want to do the Breazeale fight there, so he wouldn't really be locked in for long, could just do those fights then bounce if he wanted and do whatever he wanted. ESPN on the other hand, they offered like a 5 fight deal, which would have tied him in to a long term situation. Tyson is locked in yeah, AJ isn't though, he's on a fight by fight basis, DAZN pretty much have first refusal if they match the money, they will be offering AJ a deal, but AJ and his team don't want to do anything which may obstruct some of the potential fights, but at some point that deal will likely happen.
The owners of DAZN are very wealthy, they are making an investment, as their platform grows it should become profitable, but they are going to have to speculate to accumulate, they are banking on streaming being the future and are trying to provide a depth of quality to offer people a cheaper alternative to the PPV system. I personally hope they do well, but I hope everyone does well as it's good for boxing and the fighters to have these options.