This research points to a serious flaw with startup methodologies like Lean that validate the product with a self-selected group of customers.
I'll reveal myself as one, having bought in the 80's an Atari ST, but my Amiga companions would also fall into this category. Heck for much of its early history Mac users could be called harbingers of failure, until the advent of the iPod (I bet against it) when Apple's fortunes flipped.