I hope the author spends some time thinking about this and eventually draws a different conclusion. Relocating to a new country while simultaneously changing the intended scope of a business has serious inherent challenges. Failing to find a way to make that work out is not proof that the person simply succumbed to some kind of psychological problem rooted in a deflated ago.
tl;dr:
SF is full of the best and it's hard to be around them. I don't feel as special as when I was someplace else.