Less and Less Rewards

So Disappointed. A member with Discovery across all platforms and when contacted by the new bank to join Discovery bank, thought it would be great. However now to find out we have way less rewards. With the Discovery card we earned Discovery Miles with all the Discovery partners and for spending. On diamond status too. Only to find out yesterday that there are no more Discovery miles, we now get rewards for flying which we hardly ever do and for healthy foods, I cannot buy or eat enough salad to make up the amount the that we will now loose making this transfer when I had thought that this would actually be better for us. Uninformed that this benefit would be lost, so mad, big loss and turns out we cannot go back to card as it is being phased out. So have always been prepared to pay the higher premiums across all products because of the benefits which seem now less and less. Pity Discovery, we have been long time members and loyal. Always defended Discovery, what is going on now??