I really hate to be a pessimist, but every change they've made to rewards since I've had the card has only resulted in smaller and smaller reward stacks. I'm sure this one will be no different.
Discussion
Deflationary, my guy. That's inevitable. If they had been around in 2011 you would have gotten a hundred coin with every purchase. Of course they will lower the rewards to maintain as a company as more people sign up. They can only give away so much. That's the baseline of Bitcoin.