Most hardware companies are not known for good software. They treat software like it's just another line item on the BOM: Like a bolt or a screw. Procure it as cheaply as possible, scoop it into the product on the assembly line, and make sure it passes a few checkboxes and you're done. Unless they see software as a core differentiating product feature that drives purchases, their quality bar is going to be "barely good enough to not cause a product recall".