To me, this is a big thing that survivorship bias overlooks, to the detriment of us all. Taking Edison's "1000 failures to invent a lightbulb" can often be more instructive than the end result, even if you're not interested in inventing lightbulbs.
> The advice to be wary of experts reminds me of the advice to avoid criticism while brainstorming, the idea in common being that criticism and negativity supposedly stifles creativity.
I think the admonition to avoid criticism during brainstorming is so that any idea, no matter how infeasible, may be put forth. As I've understood it, this period of "unfettered criticism" should be markedly short, and while ideas will be recorded for future reference (and perhaps modification), they can safely be winnowed under the harsh criticism of reality after the brainstorming session.
That said, it has been common sense for quite some time that having a "box to think in" can help foster creative solutions to escaping the box.