[syndicatedjelly]

It sounds like there's a step missing from that flow - who makes requirements? Saying "I want something" is not a requirement, it's a user need. Not trying to be pedantic, but it might be the lack of definition around what a requirement actually is, that's causing the confusion and rework cycle.

A requirement is typically of the syntax, "{X} system shall {verb} {functionality}". For example, "The brakes subsystem shall convert kinetic energy of the bicycle into heat in the brake pads".

A feature request "requirement" is not a thing. The product team can request features, and someone (an engineer, or a PM typically) needs to create requirement(s) to capture the feature. As part of that process, there should be a back and forth between engineering and the product team to figure out what exactly is desired.