No, you aren't misunderstanding it.
Lazy ass dealer. They can certainly update it.
But, with that answer from them, I'd have asked to see a document saying an update would fix it. Of course, they can't.
Either way, would have made them update it and show me it was fixed.
I have emailed that seller. They say they are getting more. Just don’t know when.
I got these:
https://www.amazon.com/gp/product/B00B0IIXRS/ref=ppx_yo_dt_b_asin_title_o08_s01?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07RBTPH2F/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1