I agree that you should find something else to use the backing for or sell it to someone else who will use it up for something smaller and can cut around the holes.
I still love Missouri Star Quilt Co. but do wish they would go back to using the post office instead of FedEx. Shipping by FedEx the package has to go to multiple states before reaching its destination. Seems to be that the postal service was faster than two weeks to get an order. Maybe we should be writing to Missouri Star instead of complaining on a blog.