This, plus if you see them mentioning the Henry Ford ‘quote’ about horses you can reliably close the browser tab because they’re about to build a straw man argument against doing basic customer/user research.
Isn't it nice that those meme-like anecdotes, or whatever they are exist? Other examples are the Maginot Line in WW2, Amazon was never profitable, ERP systems suck because of their sales reps playing golf with their clients...
Interesting, I’ve always thought of this quote justifying deeper user research than just asking users what they want, not less. I’ve seen people who don’t really understand user needs over index on what they say they want versus deeply understanding their workflow and needs.
The quote is designed to make you understand that building products is about understanding problems, not listening to desired solutions.
A PM's job is to be the owner of the "problem space", while the engineering teams job is to be the owners of the "solution space".
Fords point was that his customers would only ever tell him about solutions they wanted (faster horse). When in actual fact what mattered to Ford was the problem (current modes of personal transport being expensive, unreliable, uncomfortable, slow, single-person).
Any good PM should be able to explain this to you. OP has never worked with a proper PM apparently... Just BA's and Project Managers that wanted a pay bump.