The dolphins announced that they are willing to make concessions and repay the money for stadium renovations.
But read the fine print. It's most of the money. And it's in 30 years from now.
I'm not going to sit here and speculate on the reasons mr Ross is making this "generous" offer, but one has to assume that (a) it directly benefits him in some way (like perhaps there's a tax advantage) and (b) it increases the value of the team in the time *he* owns it - it's not possible for him to own the team for 30 years, and he can recoup the amount from the new owner.
So look at the financial arrangement and decide for yourself.