Yes, directions are wrong in patterns and fabrics are substituted in kits. I wonder if the pattern was tested and checked for errors?
Double check that the pattern measurements work before cutting fabrics. A recent wall hanging pattern had the border length too short. I reached out the vendor and they agreed.
Another quilt pattern has the amount of backing exactly to the width and length of the quilt. There is no extra allowance for longarm quilting or squaring the ends. Thankful I didn't purchase the backing yet.