Definitely something weird with your offers, as you should have one big one and six small ones.
I wouldn't call the Optimum program useless. I started tracking all my SDM spending and points earned and redeemed in a spreadsheet at the end of March. Since then, I have earned points worth $1 of stuff for each $1.27 I have spent oop at SDM. I don't think there is another reward program anywhere that has the potential for that high an ROI.