No, this is just all about the money, if they have enough, they don't need to risk their health on this fight as it's possible they will be seriously injured.
Boxing nowadays are losing it's reputation, some boxer fight a UFC fighter, and now old boxers going back making their own role of fight and they just hype people on their fight, why can't they just retire and let the young ones fight?
Honestly, I already loss my excitement, I admit I am a bit excited in the first announcement month ago about this particular fight, but we know it did not push through and it was announce again this time, who would believe on them? they'll keep postponing this fight until they reach their cap of sales maybe.
I am sure they have enough money, even more. I think it's about their reputation in boxing, so they fight with the other fighters. If boxing losing its reputations, all fighters, as a legend in the boxing industry, will try to show to the public that the boxing is not ended or losing the fan. They want to tell the public that they, as old fighters, still have their power, and they can fight with the young fighters. We will see how their performance in the ring, and I am sure that they will give their best performance to us.