Interesting article, thanks for posting that Dandy. A lot of what's in there rings true for me (even as the parent of a non-prodigy!) This, for me, is the core of the difficulty of parenting our children well:
There is no clear delineation between supporting and pressuring a child, between believing in your child and forcing your child to conform to what you imagine for him.
and this the Charybdis to the Scylla of underchallenge:
Such children, despite being the subjects of obsessive attention, can suffer from not being seen; their sorrow is organized not so much around the rigor of practicing as around invisibility.
Andrew Solomon who wrote that article has a book coming out very shortly, Far from the Tree - some early reviews
here. Whoever reads that first should report on it!