Acts of God get companies out of a lot of financial burdens, so there is a financial incentive to continue labeling climate related natural disasters as Acts of God.
That said, insurance companies know the odds on events and are pricing in the risk of climate change even if they want to keep the worst instances as Acts of God.
Nah. Rewards cards live and die on transaction fees. They generally go to people with credit knowledge that know to pay off the card at the end of the month.