I worked briefly as a freelance experience designer hired by an appliance manufacturer. I asked if they could send me physical prototypes of controls so they could be tested. They refused and said it would be too expensive. They expected the controls to be designed, spec'd, and sent to the factory without any usability testing.

Designers can do all those things, but often they're not given the space to.

The best products are typically produced in an environment where the people running the company care about the design. This is a rare environment.