Customers could also return them to the retailers they bought them from.
The hyperventilating about this on tech YouTube is getting a bit ridiculous. The same thing happened with the controversy over the power connector on the 4090. Yes, it's bad -- but it's not like AMD ran over your dog.
When a new product has bugs (and many do), it takes some time to figure out who is impacted and what the fix is -- and when an issue becomes high profile, a lot of people who are not impacted manage to convince themselves that they are. Given that, and the general hyperventilating about this, I am not surprised AMD wants to be careful.