It can be a skill, but a very soft skill like keeping control of and educating 30 kindergarten students. It’s a skill, hard earned and nebulous. you can recognize it clearly when you see it, but it’s very hard to define/measure numerically and will never achieve anything close to “perfect” results.

Until these models become many factors more deterministic, at least. That’s sort of the hard barrier here, and given the underlying tech it’s a really tough one to overcome