Stonemaier games is the publisher of bestsellers like Wingspan and Scythe which have thousands of reviews on Amazon each vs TFA writer's game High Noon which has 8 review on Amazon. So I would trust that Stonemaier has more experience. Also when you type in the codes on the HTS website even the 9503 one the new tariffs aren't listed there or on any of the codes.

OK, glad I wasn't the only one who couldn't actually find the info the author said was on that site, using their link and the exact process they recommended.