But what if I want a faster horse?

"If I had asked people what they wanted, they would have said faster horses."

This line is especially silly when making B2B products, especially very expensive enterprise ones. It's often used to justify building "great ideas" from some exec or overzealous PM/engineer over concrete asks from customers. Like you really think that a team of 20 experienced people paying >$1M to help run their multi-billion dollar business, both have no idea what they actually want and don't understand the capabilities of new technologies in the market? Totally condescending.

Have you ... done enterprise sales? The idea that a group of people working for a multi-billion dollar business having no idea what they want and no understanding of capabilities of new technologies is ... standard?

I have seen it personally ... dozens? of times? Its the reasons startups can even succeed at all given the enormous momentum and cash reserves of these bigger companies - their goals, management, approach - it all becomes more diffuse and poorly executed.