Warranty on REI product

I got the REI Co-op Flash Insulated Hybrid Hoodie that is no longer sold just over a year ago and REI is saying I cannot return it but that they stand by all their products.

I argued that this was not wear and tear but should fall under their warranty, as the zipper should not just separate from the jacket after 13 months of regular use. I have H/H, Rab and even LL Bean amd Columbia jackets that have lasted X5 this one. Was this a reasonable assessment?