Generalizations like this are just so bad. My biggest beef with design/"product" folk in the tech world is this thing that many of them do, where they justify their existence as a group of people and a business function by bad-mouthing developers.
> this thing that many of them do
Lol. You can't just qualify a generalization with "many" to make it a non-generalization.
Before getting into design, I was a full-time back end developer for 11 years and worked in dev organizations in ops/support rules for a decade before that. The job market over the past decade had coddled developers so much, and made them so fragile and arrogant. Even intimating that my professional opinion on design is more informed than a developer's opinion on design often yields a intellectual temper tantrum.