I have to spend 3 days working on someone else's "narratives that are more fun to apply their creativity to" all the time, even when my intuition and experience tells me it isn't a good idea. Sometimes my intuition is wrong. I've yet to meet a product manager that isn't doing this even when they claim to have all the data in the world to support their narrative.

Personally I don't think there's anything wrong with scratching that itch, especially if its going to make you/your team more comfortable long term. 3 days is probably not make-or-break.