So this guy’s company (I may have missed it, but he doesn’t appear to mention what his own product is called) made a copycat product and went from design to manufacturing to market in 5 months? Sounds like they were just relabeling and repackaging someone else’s product. Hard to shed a tear as a grifter gets scammed by an even more unscrupulous grifter.
Regardless, this shows the dangers of violating one of the golden rules of business: never depend on a single customer. They’ll own all the leverage when negotiating price and terms. Wal-Mart exploited this for years situation for years, pitting vendors against each other and providing and preferring knock-off alternatives (sometimes its own) when available. Now Amazon does the same.