The latter is an interesting mindset to advocate for. In almost every other engineering discipline, this would be frowned upon. I suspect wisdom could be gained by not discounting better forethought to be honest.

However, I really wonder how formula 1 teams manage their engineering concepts and driver UI/UX. They do some crazy experimental things, and they have high budgets, but they're often pulling off high-risk ideas on the very edge of feasibility. Every subtle iteration requires driver testing and feedback. I really wonder what processes they use to tie it all together. I suspect that they think about this quite diligently and dare I say even somewhat rigidly. I think it quite likely that the culture that led to the intense and detailed way they look at process for pit-stops and stuff carries over to the rest of their design processes, versioning, and iteration/testing.

There exist other ways to do the research. „Try things out“ is often not just a signal of „we don‘t know what to do“, but also a signal of „we have no idea how to properly measure the outcomes of things we try“.

But that’s the point, no? Prototyping is useful but beyond a proof of concept, you still need a suitable user interface. I have no problems if there’s a rationale behind UI changes, but often we have stakeholders telling us to do something inconsistent just so their pet project can be presented to the user. That’s not design.