While Tom Brady's endorsement has little economic value, it was money paid to him. I believe a bankruptcy court can undo past transactions, so that cash might be recoverable.
With fraud, they timeline gets a lot longer.
Like he got paid $X for his endorsement. I would prefer that money go to the people whose life savings were stolen.
> Didn't exactly that happen, didn't Tom Brady put his life savings in FTX? :/
Which makes your comment seem funny or sad, depending on how you look at things.
So yes it is their responsibility.