Don't misunderstand me, the parents did nothing wrong.

Their problem was their mental model where their child's success was entirely due to their child's talents and drive, and that since they ( the parents ) had not provided any seed money, they had nothing to do with their child's success.

In a way that's true though, because the majority of kids who have that soft-landing available don't go on to achieve any kind of success like that.

the point is that the vast majority of people able to have that sort of success do have the soft landing and it is that advantage that enables them to create the successes they do.