Yeah....I would put money on where they sourced their stainless steel from.
Stainless steel is very susceptible to rust when it scratched with any carbon steel ( nails, Brillo pad, iron dust, etc) Once corrosion of metallic contaminants begins, it’s over for stainless steel. Biggest lawsuits in history coming up….
The rust resistance is dependent upon the amount of chromium in the mix.
Chromium is at a premium, so I bet it’s very low.................