As far as I can see, there have been at least three different versions of the backing paper since they ran out of/ stopped using the no longer available, most likely Kodak manufactured version. That would indicate that they have disposed of a lot of unused, problematic paper, if the minimum order quantities are what I think they are.
Daniel He's film is fairly old film - probably from the first or second problematic iteration - which he bought relatively recently. I'm hopeful that Kodak Alaris in Shanghai dropped the ball, and that the head office will make that part right.
That being said, if the retailer bought it outside the regular channels (not from an authorized distributor) and then it was handled improperly in the years that followed before Daniel bought it, I can understand why Kodak Alaris would bounce the problem back to the retailer that Daniel dealt with.