Ask HN: Wither Product Development/Management, as a defined role?

Looking through the current "Who's Hiring" list, I only count 3 product management jobs.

Sure a company needs more engineers than product people, but I continue to be surprised at how much this role is disappearing given that most agile methodologies call for "Product Owners", who usually shouldn't be engineers.

Would other HN'ers concur there is a decline in Product Management as a role in startups? And why?