Update: I contacted Joann Customer Service directly about this, and this is their reply:
Thank you for contacting Jo-Ann Fabric and Craft Stores Customer Service.
All of our Made in America fabrics are 100% made in the United States. We apologize for any inconvenience or confusion this may have caused you.
You may contact Jo-Ann Fabric and Craft Stores Customer Service via phone at 1-888-739-4120, Monday through Saturday, 9 am - 7 pm Eastern Time.
Thank you,
Megan
Customer Service Coordinator
Jo-Ann Fabric and Craft Stores