I have already made more than 0.02 BTC, and my bankroll is much, much lower than 1 BTC. Yet I have not gone bust... hmm... hmmmmmmmmm
Same as every Martingale variation - it works great until you go bankrupt.
So she is insisting she has cracked the great mystery of martingale that millions of gamblers and hundreds of mathematicians have tried and failed to create the perfect system.. err someone thinks they are clever when they are dumb